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88049664 = 2113217281
BaseRepresentation
bin1010011111110…
…00100000000000
320010200101102200
411033320200000
5140020042124
612423113200
72116260363
oct517704000
9203611380
1088049664
114577a01a
12255a2800
131531b2c1
14b9a00da
157ae3bc9
hex53f8800

88049664 has 144 divisors (see below), whose sum is σ = 270220860. Its totient is φ = 27525120.

The previous prime is 88049573. The next prime is 88049669. The reversal of 88049664 is 46694088.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 83174400 + 4875264 = 9120^2 + 2208^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88049669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313204 + ... + 313484.

Almost surely, 288049664 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 88049664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135110430).

88049664 is an abundant number, since it is smaller than the sum of its proper divisors (182171196).

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

88049664 is a wasteful number, since it uses less digits than its factorization.

88049664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 88049664 is about 9383.4782463647. The cubic root of 88049664 is about 444.8796779437.

The spelling of 88049664 in words is "eighty-eight million, forty-nine thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 64 68 72 96 102 128 136 144 153 192 204 256 272 281 288 306 384 408 512 544 562 576 612 768 816 843 1024 1088 1124 1152 1224 1536 1632 1686 2048 2176 2248 2304 2448 2529 3072 3264 3372 4352 4496 4608 4777 4896 5058 6144 6528 6744 8704 8992 9216 9554 9792 10116 13056 13488 14331 17408 17984 18432 19108 19584 20232 26112 26976 28662 34816 35968 38216 39168 40464 42993 52224 53952 57324 71936 76432 78336 80928 85986 104448 107904 114648 143872 152864 156672 161856 171972 215808 229296 287744 305728 313344 323712 343944 431616 458592 575488 611456 647424 687888 863232 917184 1222912 1294848 1375776 1726464 1834368 2445824 2589696 2751552 3668736 4891648 5179392 5503104 7337472 9783296 11006208 14674944 22012416 29349888 44024832 88049664