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140901228 = 223313100357
BaseRepresentation
bin10000110010111…
…11101101101100
3100211010112011000
420121133231230
5242032314403
621552000300
73330432516
oct1031375554
9324115130
10140901228
11725981a6
123b230090
1323264610
14149dabb6
15c5837a3
hex865fb6c

140901228 has 48 divisors (see below), whose sum is σ = 393403360. Its totient is φ = 43353792.

The previous prime is 140901223. The next prime is 140901281. The reversal of 140901228 is 822109041.

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 (140901221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48775 + ... + 51582.

Almost surely, 2140901228 is an apocalyptic number.

140901228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140901228 is an abundant number, since it is smaller than the sum of its proper divisors (252502132).

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

140901228 is a wasteful number, since it uses less digits than its factorization.

140901228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100383 (or 100375 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 140901228 is about 11870.1823069404. The cubic root of 140901228 is about 520.3612233733.

The spelling of 140901228 in words is "one hundred forty million, nine hundred one thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 108 117 156 234 351 468 702 1404 100357 200714 301071 401428 602142 903213 1204284 1304641 1806426 2609282 2709639 3612852 3913923 5218564 5419278 7827846 10838556 11741769 15655692 23483538 35225307 46967076 70450614 140901228