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19974104930 = 2513238330859
BaseRepresentation
bin10010100110100011…
…001010011101100010
31220120000210122220002
4102212203022131202
5311401332324210
613102002220002
71304656043033
oct224643123542
956500718802
1019974104930
11851a95273a
123a55354602
131b6420c200
14d76aa4a8a
157bd8534a5
hex4a68ca762

19974104930 has 48 divisors (see below), whose sum is σ = 39034690560. Its totient is φ = 7355559744.

The previous prime is 19974104929. The next prime is 19974104963. The reversal of 19974104930 is 3940147991.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 631841 + ... + 662699.

It is an arithmetic number, because the mean of its divisors is an integer number (813222720).

Almost surely, 219974104930 is an apocalyptic number.

19974104930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19974104930 is a deficient number, since it is larger than the sum of its proper divisors (19060585630).

19974104930 is a wasteful number, since it uses less digits than its factorization.

19974104930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31275 (or 31262 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 19974104930 in words is "nineteen billion, nine hundred seventy-four million, one hundred four thousand, nine hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 169 338 383 766 845 1690 1915 3830 4979 9958 24895 30859 49790 61718 64727 129454 154295 308590 323635 401167 647270 802334 2005835 4011670 5215171 10430342 11818997 23637994 26075855 52151710 59094985 118189970 153646961 307293922 768234805 1536469610 1997410493 3994820986 9987052465 19974104930