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120972288 = 210353743
BaseRepresentation
bin1110011010111…
…10010000000000
322102122000210010
413031132100000
5221432103123
620000504520
72666150613
oct715362000
9272560703
10120972288
11623162a8
123461b140
131c0a7648
14120d017a
15a948993
hex735e400

120972288 has 88 divisors (see below), whose sum is σ = 328961088. Its totient is φ = 39510016.

The previous prime is 120972283. The next prime is 120972301. The reversal of 120972288 is 882279021.

It is not an unprimeable number, because it can be changed into a prime (120972283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162445 + ... + 163187.

Almost surely, 2120972288 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 120972288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164480544).

120972288 is an abundant number, since it is smaller than the sum of its proper divisors (207988800).

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

120972288 is an equidigital number, since it uses as much as digits as its factorization.

120972288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 120972288 is about 10998.7402915061. The cubic root of 120972288 is about 494.5709822201.

The spelling of 120972288 in words is "one hundred twenty million, nine hundred seventy-two thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 53 64 96 106 128 159 192 212 256 318 384 424 512 636 743 768 848 1024 1272 1486 1536 1696 2229 2544 2972 3072 3392 4458 5088 5944 6784 8916 10176 11888 13568 17832 20352 23776 27136 35664 39379 40704 47552 54272 71328 78758 81408 95104 118137 142656 157516 162816 190208 236274 285312 315032 380416 472548 570624 630064 760832 945096 1141248 1260128 1890192 2282496 2520256 3780384 5040512 7560768 10081024 15121536 20162048 30243072 40324096 60486144 120972288