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69412387252 = 221343531493931
BaseRepresentation
bin100000010100101001…
…1001111100110110100
320122011110122121201111
41000221103033212310
52114124032343002
651515420204404
75005050361645
oct1005123174664
9218143577644
1069412387252
112748a5349aa
1211552099704
1367127980c0
1435069756cc
151c13c3d3d7
hex10294cf9b4

69412387252 has 96 divisors (see below), whose sum is σ = 137333750400. Its totient is φ = 30487242240.

The previous prime is 69412387229. The next prime is 69412387283. The reversal of 69412387252 is 25278321496.

It is a happy number.

It is a super-2 number, since 2×694123872522 (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 69412387196 and 69412387205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17655727 + ... + 17659657.

It is an arithmetic number, because the mean of its divisors is an integer number (1430559900).

Almost surely, 269412387252 is an apocalyptic number.

It is an amenable number.

69412387252 is a deficient number, since it is larger than the sum of its proper divisors (67921363148).

69412387252 is a wasteful number, since it uses less digits than its factorization.

69412387252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193 (or 4191 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The spelling of 69412387252 in words is "sixty-nine billion, four hundred twelve million, three hundred eighty-seven thousand, two hundred fifty-two".

Divisors: 1 2 4 13 26 43 52 53 86 106 149 172 212 298 559 596 689 1118 1378 1937 2236 2279 2756 3874 3931 4558 6407 7748 7862 7897 9116 12814 15724 15794 25628 29627 31588 51103 59254 83291 102206 102661 118508 166582 169033 204412 205322 208343 333164 338066 339571 410644 416686 585719 676132 679142 833372 1171438 1358284 2197429 2342876 2708459 4394858 4414423 5416918 7614347 8789716 8828846 8958749 10833836 15228694 17657692 17917498 25185917 30457388 31043107 35834996 50371834 62086214 100743668 116463737 124172428 232927474 327416921 403560391 465854948 654833842 807120782 1309667684 1334853601 1614241564 2669707202 5339414404 17353096813 34706193626 69412387252