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120347712 = 2632432113
BaseRepresentation
bin1110010110001…
…01110001000000
322101110022000200
413023011301000
5221302111322
615535245200
72660636652
oct713056100
9271408020
10120347712
1161a2a021
1234379800
131bc19284
1411daa6d2
15a8738ac
hex72c5c40

120347712 has 126 divisors (see below), whose sum is σ = 356289102. Its totient is φ = 38836224.

The previous prime is 120347681. The next prime is 120347713. The reversal of 120347712 is 217743021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 68161536 + 52186176 = 8256^2 + 7224^2 .

It is not an unprimeable number, because it can be changed into a prime (120347713) 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 17 ways as a sum of consecutive naturals, for example, 1064968 + ... + 1065080.

Almost surely, 2120347712 is an apocalyptic number.

120347712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120347712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178144551).

120347712 is an abundant number, since it is smaller than the sum of its proper divisors (235941390).

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

120347712 is a wasteful number, since it uses less digits than its factorization.

120347712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 120347712 is about 10970.3104787422. The cubic root of 120347712 is about 493.7183618674.

The spelling of 120347712 in words is "one hundred twenty million, three hundred forty-seven thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 43 48 64 72 86 96 113 129 144 172 192 226 258 288 339 344 387 452 516 576 678 688 774 904 1017 1032 1356 1376 1548 1808 1849 2034 2064 2712 2752 3096 3616 3698 4068 4128 4859 5424 5547 6192 7232 7396 8136 8256 9718 10848 11094 12384 14577 14792 16272 16641 19436 21696 22188 24768 29154 29584 32544 33282 38872 43731 44376 58308 59168 65088 66564 77744 87462 88752 116616 118336 133128 155488 174924 177504 208937 233232 266256 310976 349848 355008 417874 466464 532512 626811 699696 835748 932928 1065024 1253622 1399392 1671496 1880433 2507244 2798784 3342992 3760866 5014488 6685984 7521732 10028976 13371968 15043464 20057952 30086928 40115904 60173856 120347712