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87374212 = 2221843553
BaseRepresentation
bin1010011010100…
…11100110000100
320002102001212221
411031103212010
5134331433322
612400422124
72110445212
oct515234604
9202361787
1087374212
11453585a2
1225317944
1315142a23
14b865cb2
157a0d9c7
hex5353984

87374212 has 6 divisors (see below), whose sum is σ = 152904878. Its totient is φ = 43687104.

The previous prime is 87374153. The next prime is 87374227. The reversal of 87374212 is 21247378.

It can be written as a sum of positive squares in only one way, i.e., 85821696 + 1552516 = 9264^2 + 1246^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10921773 + ... + 10921780.

Almost surely, 287374212 is an apocalyptic number.

It is an amenable number.

87374212 is a deficient number, since it is larger than the sum of its proper divisors (65530666).

87374212 is a wasteful number, since it uses less digits than its factorization.

87374212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21843557 (or 21843555 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 87374212 is about 9347.4173973349. The cubic root of 87374212 is about 443.7391604309.

The spelling of 87374212 in words is "eighty-seven million, three hundred seventy-four thousand, two hundred twelve".

Divisors: 1 2 4 21843553 43687106 87374212