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69311138022 = 23471731115979
BaseRepresentation
bin100000010001101000…
…1000000100011100110
320121220102010121220000
41000203101000203212
52113422122404042
651501402122130
75002410644460
oct1004321004346
9217812117800
1069311138022
112743836a955
12115241b0346
1366c7807b09
1434d733b130
151c09ddd74c
hex10234408e6

69311138022 has 160 divisors (see below), whose sum is σ = 194000209920. Its totient is φ = 18036898560.

The previous prime is 69311138011. The next prime is 69311138023. The reversal of 69311138022 is 22083111396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69311138023) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 539629 + ... + 655607.

It is an arithmetic number, because the mean of its divisors is an integer number (1212501312).

Almost surely, 269311138022 is an apocalyptic number.

69311138022 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 69311138022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97000104960).

69311138022 is an abundant number, since it is smaller than the sum of its proper divisors (124689071898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69311138022 is a wasteful number, since it uses less digits than its factorization.

69311138022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116048 (or 116039 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 69311138022 in words is "sixty-nine billion, three hundred eleven million, one hundred thirty-eight thousand, twenty-two".

Divisors: 1 2 3 6 7 9 14 17 18 21 27 31 34 42 51 54 62 63 81 93 102 119 126 153 162 186 189 217 238 279 306 357 378 434 459 527 558 567 651 714 837 918 1054 1071 1134 1302 1377 1581 1674 1953 2142 2511 2754 3162 3213 3689 3906 4743 5022 5859 6426 7378 9486 9639 11067 11718 14229 17577 19278 22134 28458 33201 35154 42687 66402 85374 99603 115979 199206 231958 298809 347937 597618 695874 811853 1043811 1623706 1971643 2087622 2435559 3131433 3595349 3943286 4871118 5914929 6262866 7190698 7306677 9394299 10786047 11829858 13801501 14613354 17744787 18788598 21572094 21920031 25167443 27603002 32358141 35489574 41404503 43840062 50334886 53234361 61120933 64716282 65760093 75502329 82809006 97074423 106468722 122241866 124213509 131520186 151004658 159703083 183362799 194148846 226506987 248427018 291223269 319406166 366725598 372640527 427846531 453013974 550088397 582446538 679520961 745281054 855693062 1100176794 1117921581 1283539593 1359041922 1650265191 2038562883 2235843162 2567079186 3300530382 3850618779 4077125766 4950795573 7701237558 9901591146 11551856337 23103712674 34655569011 69311138022