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69077149056 = 2733191051979
BaseRepresentation
bin100000001010101010…
…0011010010110000000
320121022002211202101000
41000111110122112000
52112432222232211
651422243012000
74663540036056
oct1002524322600
9217262752330
1069077149056
1127328282543
121147996a000
13668b1accc6
1434b422c1d6
151be45bd656
hex101551a580

69077149056 has 128 divisors (see below), whose sum is σ = 214603920000. Its totient is φ = 21813815808.

The previous prime is 69077149051. The next prime is 69077149081. The reversal of 69077149056 is 65094177096.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×690771490562 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 69077148993 and 69077149011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69077149051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460326 + ... + 591653.

It is an arithmetic number, because the mean of its divisors is an integer number (1676593125).

Almost surely, 269077149056 is an apocalyptic number.

It is an amenable number.

69077149056 is an abundant number, since it is smaller than the sum of its proper divisors (145526770944).

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

69077149056 is a wasteful number, since it uses less digits than its factorization.

69077149056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052021 (or 1052003 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 69077149056 in words is "sixty-nine billion, seventy-seven million, one hundred forty-nine thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 38 48 54 57 64 72 76 96 108 114 128 144 152 171 192 216 228 288 304 342 384 432 456 513 576 608 684 864 912 1026 1152 1216 1368 1728 1824 2052 2432 2736 3456 3648 4104 5472 7296 8208 10944 16416 21888 32832 65664 1051979 2103958 3155937 4207916 6311874 8415832 9467811 12623748 16831664 18935622 19987601 25247496 28403433 33663328 37871244 39975202 50494992 56806866 59962803 67326656 75742488 79950404 100989984 113613732 119925606 134653312 151484976 159900808 179888409 201979968 227227464 239851212 302969952 319801616 359776818 403959936 454454928 479702424 539665227 605939904 639603232 719553636 908909856 959404848 1079330454 1211879808 1279206464 1439107272 1817819712 1918809696 2158660908 2558412928 2878214544 3635639424 3837619392 4317321816 5756429088 7675238784 8634643632 11512858176 17269287264 23025716352 34538574528 69077149056