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140872225 = 5213433453
BaseRepresentation
bin10000110010110…
…00101000100001
3100211002001100211
420121120220201
5242030402400
621551214121
73330252124
oct1031305041
9324061324
10140872225
117257842a
123b217341
1323254360
14149d03bb
15c579dba
hex8658a21

140872225 has 12 divisors (see below), whose sum is σ = 188119036. Its totient is φ = 104028480.

The previous prime is 140872211. The next prime is 140872229. The reversal of 140872225 is 522278041.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 12027024 + 128845201 = 3468^2 + 11351^2 .

It is not a de Polignac number, because 140872225 - 29 = 140871713 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140872229) 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, 216402 + ... + 217051.

Almost surely, 2140872225 is an apocalyptic number.

It is an amenable number.

140872225 is a deficient number, since it is larger than the sum of its proper divisors (47246811).

140872225 is a wasteful number, since it uses less digits than its factorization.

140872225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433476 (or 433471 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 140872225 is about 11868.9605694854. The cubic root of 140872225 is about 520.3255173391.

The spelling of 140872225 in words is "one hundred forty million, eight hundred seventy-two thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 325 433453 2167265 5634889 10836325 28174445 140872225