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87433412 = 22111987123
BaseRepresentation
bin1010011011000…
…10000011000100
320002112002002112
411031202003010
5134340332122
612402000152
72111112623
oct515420304
9202462075
1087433412
1145399020
1225346058
1315163961
14b87d6ba
157a212e2
hex53620c4

87433412 has 12 divisors (see below), whose sum is σ = 166918416. Its totient is φ = 39742440.

The previous prime is 87433403. The next prime is 87433427. The reversal of 87433412 is 21433478.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993518 + ... + 993605.

It is an arithmetic number, because the mean of its divisors is an integer number (13909868).

Almost surely, 287433412 is an apocalyptic number.

It is an amenable number.

87433412 is a deficient number, since it is larger than the sum of its proper divisors (79485004).

87433412 is a wasteful number, since it uses less digits than its factorization.

87433412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987138 (or 1987136 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 87433412 is about 9350.5835112040. The cubic root of 87433412 is about 443.8393556221.

The spelling of 87433412 in words is "eighty-seven million, four hundred thirty-three thousand, four hundred twelve".

Divisors: 1 2 4 11 22 44 1987123 3974246 7948492 21858353 43716706 87433412