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87407052 = 2237283921
BaseRepresentation
bin1010011010110…
…11100111001100
320002110201221020
411031123213030
5134334011202
612401234140
72110643025
oct515334714
9202421836
1087407052
1145380237
1225332950
1315154965
14b873c4c
157a185bc
hex535b9cc

87407052 has 12 divisors (see below), whose sum is σ = 203949816. Its totient is φ = 29135680.

The previous prime is 87407041. The next prime is 87407053. The reversal of 87407052 is 25070478.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (87407053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3641949 + ... + 3641972.

It is an arithmetic number, because the mean of its divisors is an integer number (16995818).

Almost surely, 287407052 is an apocalyptic number.

It is an amenable number.

87407052 is an abundant number, since it is smaller than the sum of its proper divisors (116542764).

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

87407052 is a wasteful number, since it uses less digits than its factorization.

87407052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7283928 (or 7283926 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 87407052 is about 9349.1738672462. The cubic root of 87407052 is about 443.7947472696.

The spelling of 87407052 in words is "eighty-seven million, four hundred seven thousand, fifty-two".

Divisors: 1 2 3 4 6 12 7283921 14567842 21851763 29135684 43703526 87407052