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88021472 = 25711139257
BaseRepresentation
bin1010011111100…
…01100111100000
320010121221202112
411033301213200
5140013141342
612422334452
72116112240
oct517614740
9203557675
1088021472
114575a920
122558a428
131530b516
14b993b20
157ada682
hex53f19e0

88021472 has 96 divisors (see below), whose sum is σ = 218453760. Its totient is φ = 33914880.

The previous prime is 88021457. The next prime is 88021487. The reversal of 88021472 is 27412088.

It is an interprime number because it is at equal distance from previous prime (88021457) and next prime (88021487).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342368 + ... + 342624.

It is an arithmetic number, because the mean of its divisors is an integer number (2275560).

Almost surely, 288021472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88021472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109226880).

88021472 is an abundant number, since it is smaller than the sum of its proper divisors (130432288).

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

88021472 is a wasteful number, since it uses less digits than its factorization.

88021472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 88021472 is about 9381.9759112886. The cubic root of 88021472 is about 444.8321919147.

The spelling of 88021472 in words is "eighty-eight million, twenty-one thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 11 14 16 22 28 32 44 56 77 88 112 139 154 176 224 257 278 308 352 514 556 616 973 1028 1112 1232 1529 1799 1946 2056 2224 2464 2827 3058 3598 3892 4112 4448 5654 6116 7196 7784 8224 10703 11308 12232 14392 15568 19789 21406 22616 24464 28784 31136 35723 39578 42812 45232 48928 57568 71446 79156 85624 90464 142892 158312 171248 250061 285784 316624 342496 392953 500122 571568 633248 785906 1000244 1143136 1571812 2000488 2750671 3143624 4000976 5501342 6287248 8001952 11002684 12574496 22005368 44010736 88021472