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140903712 = 253454361
BaseRepresentation
bin10000110011000…
…00010100100000
3100211010122120000
420121200110200
5242032404322
621552020000
73330442665
oct1031402440
9324118500
10140903712
117259a054
123b231600
13232657a1
14149dba6c
15c5843ac
hex8660520

140903712 has 60 divisors (see below), whose sum is σ = 414401526. Its totient is φ = 46967040.

The previous prime is 140903671. The next prime is 140903713. The reversal of 140903712 is 217309041.

It can be written as a sum of positive squares in only one way, i.e., 115863696 + 25040016 = 10764^2 + 5004^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (140903713) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 24589 + ... + 29772.

Almost surely, 2140903712 is an apocalyptic number.

140903712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140903712 is an abundant number, since it is smaller than the sum of its proper divisors (273497814).

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

140903712 is an equidigital number, since it uses as much as digits as its factorization.

140903712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54383 (or 54366 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 140903712 is about 11870.2869384021. The cubic root of 140903712 is about 520.3642812357.

The spelling of 140903712 in words is "one hundred forty million, nine hundred three thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 216 288 324 432 648 864 1296 2592 54361 108722 163083 217444 326166 434888 489249 652332 869776 978498 1304664 1467747 1739552 1956996 2609328 2935494 3913992 4403241 5218656 5870988 7827984 8806482 11741976 15655968 17612964 23483952 35225928 46967904 70451856 140903712