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20294936184 = 2331944506439
BaseRepresentation
bin10010111001101011…
…000010011001111000
31221101101111120122010
4102321223002121320
5313031000424214
613153502525520
71315633053105
oct227153023170
957341446563
1020294936184
118674a64a36
123b248968a0
131bb58218a3
14da753baac
157dbac9659
hex4b9ac2678

20294936184 has 32 divisors (see below), whose sum is σ = 53407728000. Its totient is φ = 6408927072.

The previous prime is 20294936183. The next prime is 20294936227. The reversal of 20294936184 is 48163949202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20294936183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22252764 + ... + 22253675.

It is an arithmetic number, because the mean of its divisors is an integer number (1668991500).

Almost surely, 220294936184 is an apocalyptic number.

20294936184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20294936184 is an abundant number, since it is smaller than the sum of its proper divisors (33112791816).

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

20294936184 is a wasteful number, since it uses less digits than its factorization.

20294936184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44506467 (or 44506463 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 20294936184 in words is "twenty billion, two hundred ninety-four million, nine hundred thirty-six thousand, one hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 44506439 89012878 133519317 178025756 267038634 356051512 534077268 845622341 1068154536 1691244682 2536867023 3382489364 5073734046 6764978728 10147468092 20294936184