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930199831 = 11353239557
BaseRepresentation
bin110111011100011…
…011100100010111
32101211100001021121
4313130123210113
53401112343311
6232145224411
732023365601
oct6734334427
92354301247
10930199831
114380899a0
1221b632107
1311a93b602
148b77c171
15569e4b71
hex3771b917

930199831 has 8 divisors (see below), whose sum is σ = 1017642384. Its totient is φ = 843237120.

The previous prime is 930199817. The next prime is 930199843. The reversal of 930199831 is 138991039.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 930199831 - 219 = 929675543 is a prime.

It is a super-2 number, since 2×9301998312 = 1730543451184857122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (930199801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115896 + ... + 123661.

It is an arithmetic number, because the mean of its divisors is an integer number (127205298).

Almost surely, 2930199831 is an apocalyptic number.

930199831 is a deficient number, since it is larger than the sum of its proper divisors (87442553).

930199831 is a wasteful number, since it uses less digits than its factorization.

930199831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239921.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 930199831 is about 30499.1775462880. The cubic root of 930199831 is about 976.1699148627.

The spelling of 930199831 in words is "nine hundred thirty million, one hundred ninety-nine thousand, eight hundred thirty-one".

Divisors: 1 11 353 3883 239557 2635127 84563621 930199831