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140199680 = 285172379
BaseRepresentation
bin10000101101101…
…00011100000000
3100202210212210202
420112310130000
5241342342210
621524544332
73321451265
oct1026643400
9322725722
10140199680
1172159105
123ab520a8
132307a1ba
141489726c
15c4959a5
hex85b4700

140199680 has 108 divisors (see below), whose sum is σ = 357679560. Its totient is φ = 52641792.

The previous prime is 140199671. The next prime is 140199713. The reversal of 140199680 is 86991041.

It is a happy number.

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, 369731 + ... + 370109.

Almost surely, 2140199680 is an apocalyptic number.

140199680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140199680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178839780).

140199680 is an abundant number, since it is smaller than the sum of its proper divisors (217479880).

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

140199680 is an equidigital number, since it uses as much as digits as its factorization.

140199680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 140199680 is about 11840.5945796653. The cubic root of 140199680 is about 519.4961589162.

The spelling of 140199680 in words is "one hundred forty million, one hundred ninety-nine thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 64 68 80 85 128 136 160 170 256 272 289 320 340 379 544 578 640 680 758 1088 1156 1280 1360 1445 1516 1895 2176 2312 2720 2890 3032 3790 4352 4624 5440 5780 6064 6443 7580 9248 10880 11560 12128 12886 15160 18496 21760 23120 24256 25772 30320 32215 36992 46240 48512 51544 60640 64430 73984 92480 97024 103088 109531 121280 128860 184960 206176 219062 242560 257720 369920 412352 438124 485120 515440 547655 824704 876248 1030880 1095310 1649408 1752496 2061760 2190620 3504992 4123520 4381240 7009984 8247040 8762480 14019968 17524960 28039936 35049920 70099840 140199680