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10193988 = 2237121357
BaseRepresentation
bin100110111000…
…110001000100
3201011220112010
4212320301010
510102201423
61002254220
7152435040
oct46706104
921156463
1010193988
115832992
1234b7370
13215bc5c
1414d5020
15d65693
hex9b8c44

10193988 has 24 divisors (see below), whose sum is σ = 27184192. Its totient is φ = 2912544.

The previous prime is 10193959. The next prime is 10194001. The reversal of 10193988 is 88939101.

It is a happy number.

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, 60595 + ... + 60762.

Almost surely, 210193988 is an apocalyptic number.

It is an amenable number.

10193988 is an abundant number, since it is smaller than the sum of its proper divisors (16990204).

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

10193988 is a wasteful number, since it uses less digits than its factorization.

10193988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121371 (or 121369 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 10193988 is about 3192.8025306931. The cubic root of 10193988 is about 216.8276715178.

The spelling of 10193988 in words is "ten million, one hundred ninety-three thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 121357 242714 364071 485428 728142 849499 1456284 1698998 2548497 3397996 5096994 10193988