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140680372 = 22721742221
BaseRepresentation
bin10000110001010…
…01110010110100
3100210201022012011
420120221302310
5242003232442
621543134004
73325522600
oct1030516264
9323638164
10140680372
1172457278
123b144304
13231b7c31
1414980500
15c53d117
hex8629cb4

140680372 has 36 divisors (see below), whose sum is σ = 303238404. Its totient is φ = 56743680.

The previous prime is 140680357. The next prime is 140680381. The reversal of 140680372 is 273086041.

It can be written as a sum of positive squares in 2 ways, for example, as 127328656 + 13351716 = 11284^2 + 3654^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17779 + ... + 24442.

It is an arithmetic number, because the mean of its divisors is an integer number (8423289).

Almost surely, 2140680372 is an apocalyptic number.

It is an amenable number.

140680372 is an abundant number, since it is smaller than the sum of its proper divisors (162558032).

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

140680372 is a wasteful number, since it uses less digits than its factorization.

140680372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42256 (or 42247 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 140680372 is about 11860.8756843666. The cubic root of 140680372 is about 520.0892006740.

The spelling of 140680372 in words is "one hundred forty million, six hundred eighty thousand, three hundred seventy-two".

Divisors: 1 2 4 7 14 17 28 34 49 68 98 119 196 238 476 833 1666 3332 42221 84442 168884 295547 591094 717757 1182188 1435514 2068829 2871028 4137658 5024299 8275316 10048598 20097196 35170093 70340186 140680372