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140107040 = 2554092141
BaseRepresentation
bin10000101100111…
…01110100100000
3100202122011201122
420112131310200
5241331411130
621522551412
73320614223
oct1026356440
9322564648
10140107040
11720a5547
123ab08568
1323046c98
14148715ba
15c4782e5
hex859dd20

140107040 has 48 divisors (see below), whose sum is σ = 331967160. Its totient is φ = 55879680.

The previous prime is 140107039. The next prime is 140107061. The reversal of 140107040 is 40701041.

It can be written as a sum of positive squares in 4 ways, for example, as 139523344 + 583696 = 11812^2 + 764^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64370 + ... + 66510.

Almost surely, 2140107040 is an apocalyptic number.

140107040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140107040 is an abundant number, since it is smaller than the sum of its proper divisors (191860120).

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

140107040 is a wasteful number, since it uses less digits than its factorization.

140107040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565 (or 2557 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 140107040 is about 11836.6819675110. The cubic root of 140107040 is about 519.3817108942.

Adding to 140107040 its reverse (40701041), we get a palindrome (180808081).

The spelling of 140107040 in words is "one hundred forty million, one hundred seven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 409 818 1636 2045 2141 3272 4090 4282 6544 8180 8564 10705 13088 16360 17128 21410 32720 34256 42820 65440 68512 85640 171280 342560 875669 1751338 3502676 4378345 7005352 8756690 14010704 17513380 28021408 35026760 70053520 140107040