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30397956830 = 255935126131
BaseRepresentation
bin11100010011110111…
…000000001011011110
32220110111010012111222
4130103313000023132
5444223334104310
621544205413342
72124201240563
oct342367001336
986414105458
1030397956830
111198994397a
125a8426a252
132b3596c707
14168523a86a
15bcda37055
hex713dc02de

30397956830 has 16 divisors (see below), whose sum is σ = 54808603344. Its totient is φ = 12138675840.

The previous prime is 30397956811. The next prime is 30397956863. The reversal of 30397956830 is 3865979303.

It is a congruent 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, 2557136 + ... + 2568995.

It is an arithmetic number, because the mean of its divisors is an integer number (3425537709).

Almost surely, 230397956830 is an apocalyptic number.

30397956830 is a deficient number, since it is larger than the sum of its proper divisors (24410646514).

30397956830 is a wasteful number, since it uses less digits than its factorization.

30397956830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126731.

The product of its (nonzero) digits is 3674160, while the sum is 53.

The spelling of 30397956830 in words is "thirty billion, three hundred ninety-seven million, nine hundred fifty-six thousand, eight hundred thirty".

Divisors: 1 2 5 10 593 1186 2965 5930 5126131 10252262 25630655 51261310 3039795683 6079591366 15198978415 30397956830