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30492745790 = 2513800929287
BaseRepresentation
bin11100011001100000…
…100110000000111110
32220201002110222112012
4130121200212000332
5444422120331130
622001433211222
72126432030333
oct343140460076
986632428465
1030492745790
1111a283a6261
125aabb60b12
132b4c4aa360
141693a7298a
15bd700c995
hex71982603e

30492745790 has 32 divisors (see below), whose sum is σ = 59118413760. Its totient is φ = 11257069824.

The previous prime is 30492745763. The next prime is 30492745889. The reversal of 30492745790 is 9754729403.

It is a congruent number.

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, 1026527 + ... + 1055813.

It is an arithmetic number, because the mean of its divisors is an integer number (1847450430).

Almost surely, 230492745790 is an apocalyptic number.

30492745790 is a deficient number, since it is larger than the sum of its proper divisors (28625667970).

30492745790 is a wasteful number, since it uses less digits than its factorization.

30492745790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37316.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 30492745790 in words is "thirty billion, four hundred ninety-two million, seven hundred forty-five thousand, seven hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 8009 16018 29287 40045 58574 80090 104117 146435 208234 292870 380731 520585 761462 1041170 1903655 3807310 234559583 469119166 1172797915 2345595830 3049274579 6098549158 15246372895 30492745790