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87234004 = 221113178971
BaseRepresentation
bin1010011001100…
…01010111010100
320002010221120001
411030301113110
5134312442004
612353421044
72106322354
oct514612724
9202127501
1087234004
1145272220
122526a784
13150c3c70
14b82ab64
1579d21a4
hex53315d4

87234004 has 48 divisors (see below), whose sum is σ = 189919296. Its totient is φ = 34444800.

The previous prime is 87233999. The next prime is 87234013. The reversal of 87234004 is 40043278.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5239 + ... + 14209.

It is an arithmetic number, because the mean of its divisors is an integer number (3956652).

Almost surely, 287234004 is an apocalyptic number.

It is an amenable number.

87234004 is an abundant number, since it is smaller than the sum of its proper divisors (102685292).

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

87234004 is a wasteful number, since it uses less digits than its factorization.

87234004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9016 (or 9014 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 87234004 is about 9339.9145606371. The cubic root of 87234004 is about 443.5016796480.

The spelling of 87234004 in words is "eighty-seven million, two hundred thirty-four thousand, four".

Divisors: 1 2 4 11 13 17 22 26 34 44 52 68 143 187 221 286 374 442 572 748 884 2431 4862 8971 9724 17942 35884 98681 116623 152507 197362 233246 305014 394724 466492 610028 1282853 1677577 1982591 2565706 3355154 3965182 5131412 6710308 7930364 21808501 43617002 87234004