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69113940 = 22357792083
BaseRepresentation
bin1000001111010…
…01100001010100
311211001100111120
410013221201110
5120143121230
610505203540
71466313240
oct407514124
9154040446
1069113940
1136016365
121b1905b0
131141b42c
149271420
156103310
hex41e9854

69113940 has 96 divisors (see below), whose sum is σ = 224071680. Its totient is φ = 15590016.

The previous prime is 69113939. The next prime is 69113953. The reversal of 69113940 is 4931196.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32139 + ... + 34221.

It is an arithmetic number, because the mean of its divisors is an integer number (2334080).

Almost surely, 269113940 is an apocalyptic number.

69113940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69113940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112035840).

69113940 is an abundant number, since it is smaller than the sum of its proper divisors (154957740).

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

69113940 is a wasteful number, since it uses less digits than its factorization.

69113940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181 (or 2179 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 69113940 is about 8313.4794159846. The cubic root of 69113940 is about 410.3822332706.

The spelling of 69113940 in words is "sixty-nine million, one hundred thirteen thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 79 84 105 140 158 210 237 316 395 420 474 553 790 948 1106 1185 1580 1659 2083 2212 2370 2765 3318 4166 4740 5530 6249 6636 8295 8332 10415 11060 12498 14581 16590 20830 24996 29162 31245 33180 41660 43743 58324 62490 72905 87486 124980 145810 164557 174972 218715 291620 329114 437430 493671 658228 822785 874860 987342 1151899 1645570 1974684 2303798 2468355 3291140 3455697 4607596 4936710 5759495 6911394 9873420 11518990 13822788 17278485 23037980 34556970 69113940