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919831029924 = 223170944852303
BaseRepresentation
bin11010110001010100011…
…00111010100010100100
310020221020121100210010010
431120222030322202210
5110032303220424144
61542321535130220
7123312161515212
oct15305214724244
93227217323103
10919831029924
11325109700124
1212a329673970
1368980152441
143273d085cb2
1518dd851c5b9
hexd62a33a8a4

919831029924 has 24 divisors (see below), whose sum is σ = 2147528315520. Its totient is φ = 306430927264.

The previous prime is 919831029907. The next prime is 919831029941. The reversal of 919831029924 is 429920138919.

It is an interprime number because it is at equal distance from previous prime (919831029907) and next prime (919831029941).

It is a super-2 number, since 2×9198310299242 (a number of 25 digits) contains 22 as substring.

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, 22405644 + ... + 22446659.

It is an arithmetic number, because the mean of its divisors is an integer number (89480346480).

Almost surely, 2919831029924 is an apocalyptic number.

It is an amenable number.

919831029924 is an abundant number, since it is smaller than the sum of its proper divisors (1227697285596).

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

919831029924 is a wasteful number, since it uses less digits than its factorization.

919831029924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44854019 (or 44854017 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 57.

The spelling of 919831029924 in words is "nine hundred nineteen billion, eight hundred thirty-one million, twenty-nine thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 12 1709 3418 5127 6836 10254 20508 44852303 89704606 134556909 179409212 269113818 538227636 76652585827 153305171654 229957757481 306610343308 459915514962 919831029924