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87695412 = 223719232389
BaseRepresentation
bin1010011101000…
…10000000110100
320010000101111020
411032202000310
5134422223122
612411341140
72113253520
oct516420064
9203011436
1087695412
1145557952
12254517b0
1315225c9c
14b90ad80
157a73c5c
hex53a2034

87695412 has 96 divisors (see below), whose sum is σ = 256972800. Its totient is φ = 22695552.

The previous prime is 87695407. The next prime is 87695423. The reversal of 87695412 is 21459678.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35514 + ... + 37902.

It is an arithmetic number, because the mean of its divisors is an integer number (2676800).

Almost surely, 287695412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87695412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128486400).

87695412 is an abundant number, since it is smaller than the sum of its proper divisors (169277388).

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

87695412 is a wasteful number, since it uses less digits than its factorization.

87695412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445 (or 2443 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 87695412 is about 9364.5828524286. The cubic root of 87695412 is about 444.2822448589.

The spelling of 87695412 in words is "eighty-seven million, six hundred ninety-five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 19 21 23 28 38 42 46 57 69 76 84 92 114 133 138 161 228 266 276 322 399 437 483 532 644 798 874 966 1311 1596 1748 1932 2389 2622 3059 4778 5244 6118 7167 9177 9556 12236 14334 16723 18354 28668 33446 36708 45391 50169 54947 66892 90782 100338 109894 136173 164841 181564 200676 219788 272346 317737 329682 384629 544692 635474 659364 769258 953211 1043993 1153887 1270948 1538516 1906422 2087986 2307774 3131979 3812844 4175972 4615548 6263958 7307951 12527916 14615902 21923853 29231804 43847706 87695412