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87284116 = 226724861
BaseRepresentation
bin1010011001111…
…01100110010100
320002020111022001
411030331212110
5134321042431
612354445044
72106621433
oct514754624
9202214261
1087284116
11452a6937
1225293784
1315110a0a
14b84111a
1579e1e61
hex533d994

87284116 has 18 divisors (see below), whose sum is σ = 155092938. Its totient is φ = 42981840.

The previous prime is 87284111. The next prime is 87284201. The reversal of 87284116 is 61148278.

It can be written as a sum of positive squares in only one way, i.e., 85488516 + 1795600 = 9246^2 + 1340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87284111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15526 + ... + 20386.

Almost surely, 287284116 is an apocalyptic number.

It is an amenable number.

87284116 is a deficient number, since it is larger than the sum of its proper divisors (67808822).

87284116 is a wasteful number, since it uses less digits than its factorization.

87284116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4999 (or 4930 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 87284116 is about 9342.5968552646. The cubic root of 87284116 is about 443.5865872941.

The spelling of 87284116 in words is "eighty-seven million, two hundred eighty-four thousand, one hundred sixteen".

Divisors: 1 2 4 67 134 268 4489 4861 8978 9722 17956 19444 325687 651374 1302748 21821029 43642058 87284116