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87444216 = 23325872069
BaseRepresentation
bin1010011011001…
…00101011111000
320002112121220200
411031210223320
5134341203331
612402122200
72111156256
oct515445370
9202477820
1087444216
11453a6152
1225350360
1315168852
14b8835d6
157a245e6
hex5364af8

87444216 has 48 divisors (see below), whose sum is σ = 237346200. Its totient is φ = 29084352.

The previous prime is 87444197. The next prime is 87444233. The reversal of 87444216 is 61244478.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41230 + ... + 43298.

Almost surely, 287444216 is an apocalyptic number.

It is an amenable number.

87444216 is an abundant number, since it is smaller than the sum of its proper divisors (149901984).

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

87444216 is a wasteful number, since it uses less digits than its factorization.

87444216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668 (or 2661 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 87444216 is about 9351.1612113149. The cubic root of 87444216 is about 443.8576363639.

The spelling of 87444216 in words is "eighty-seven million, four hundred forty-four thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 587 1174 1761 2069 2348 3522 4138 4696 5283 6207 7044 8276 10566 12414 14088 16552 18621 21132 24828 37242 42264 49656 74484 148968 1214503 2429006 3643509 4858012 7287018 9716024 10930527 14574036 21861054 29148072 43722108 87444216