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1297952994 = 231373227951
BaseRepresentation
bin100110101011101…
…0011000011100010
310100110022211210010
41031113103003202
510124233443434
6332443345350
744110263342
oct11527230342
93313284703
101297952994
1160672a328
12302822256
13178b9c330
14c454ad22
1578e389e9
hex4d5d30e2

1297952994 has 32 divisors (see below), whose sum is σ = 2833899264. Its totient is φ = 393897600.

The previous prime is 1297952983. The next prime is 1297953001. The reversal of 1297952994 is 4992597921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108282 + ... + 119669.

It is an arithmetic number, because the mean of its divisors is an integer number (88559352).

Almost surely, 21297952994 is an apocalyptic number.

1297952994 is an abundant number, since it is smaller than the sum of its proper divisors (1535946270).

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

1297952994 is a wasteful number, since it uses less digits than its factorization.

1297952994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228042.

The product of its digits is 3674160, while the sum is 57.

The square root of 1297952994 is about 36027.1147054548. The cubic root of 1297952994 is about 1090.8197391073.

The spelling of 1297952994 in words is "one billion, two hundred ninety-seven million, nine hundred fifty-two thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 13 26 39 73 78 146 219 438 949 1898 2847 5694 227951 455902 683853 1367706 2963363 5926726 8890089 16640423 17780178 33280846 49921269 99842538 216325499 432650998 648976497 1297952994