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87702742 = 2137320083
BaseRepresentation
bin1010011101000…
…11110011010110
320010000202112201
411032203303112
5134422441432
612411435114
72113314061
oct516436326
9203022481
1087702742
1145562406
1225455a9a
131522941a
14b90d8d8
157a75ee7
hex53a3cd6

87702742 has 8 divisors (see below), whose sum is σ = 132514776. Its totient is φ = 43531152.

The previous prime is 87702739. The next prime is 87702761. The reversal of 87702742 is 24720778.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 159768 + ... + 160315.

It is an arithmetic number, because the mean of its divisors is an integer number (16564347).

Almost surely, 287702742 is an apocalyptic number.

87702742 is a deficient number, since it is larger than the sum of its proper divisors (44812034).

87702742 is a wasteful number, since it uses less digits than its factorization.

87702742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320222.

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 87702742 is about 9364.9742124578. The cubic root of 87702742 is about 444.2946229224.

The spelling of 87702742 in words is "eighty-seven million, seven hundred two thousand, seven hundred forty-two".

Divisors: 1 2 137 274 320083 640166 43851371 87702742