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89816408 = 23115917299
BaseRepresentation
bin1010101101001…
…11110101011000
320021000010221122
411112213311120
5140443111113
612525024412
72140266263
oct526476530
9207003848
1089816408
1146776440
12260b5108
13157b9506
14bcddcda
157d42408
hex55a7d58

89816408 has 32 divisors (see below), whose sum is σ = 186840000. Its totient is φ = 40131360.

The previous prime is 89816399. The next prime is 89816431. The reversal of 89816408 is 80461898.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3458 + ... + 13841.

It is an arithmetic number, because the mean of its divisors is an integer number (5838750).

Almost surely, 289816408 is an apocalyptic number.

89816408 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

89816408 is an abundant number, since it is smaller than the sum of its proper divisors (97023592).

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

89816408 is a wasteful number, since it uses less digits than its factorization.

89816408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17375 (or 17371 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 89816408 is about 9477.1518928421. The cubic root of 89816408 is about 447.8355449740.

The spelling of 89816408 in words is "eighty-nine million, eight hundred sixteen thousand, four hundred eight".

Divisors: 1 2 4 8 11 22 44 59 88 118 236 472 649 1298 2596 5192 17299 34598 69196 138392 190289 380578 761156 1020641 1522312 2041282 4082564 8165128 11227051 22454102 44908204 89816408