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87034100 = 2252870341
BaseRepresentation
bin1010011000000…
…00100011110100
320001202210100012
411030000203310
5134240042400
612345235352
72104530506
oct514004364
9201683305
1087034100
114514600a
1225192b58
1315053c8a
14b7b7d76
157992d35
hex53008f4

87034100 has 18 divisors (see below), whose sum is σ = 188864214. Its totient is φ = 34813600.

The previous prime is 87034099. The next prime is 87034147. The reversal of 87034100 is 143078.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1582564 + 85451536 = 1258^2 + 9244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 435071 + ... + 435270.

Almost surely, 287034100 is an apocalyptic number.

It is an amenable number.

87034100 is an abundant number, since it is smaller than the sum of its proper divisors (101830114).

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

87034100 is a wasteful number, since it uses less digits than its factorization.

87034100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870355 (or 870348 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 87034100 is about 9329.2068258775. The cubic root of 87034100 is about 443.1626468387.

Adding to 87034100 its reverse (143078), we get a palindrome (87177178).

The spelling of 87034100 in words is "eighty-seven million, thirty-four thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 870341 1740682 3481364 4351705 8703410 17406820 21758525 43517050 87034100