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20763854746 = 231808141443
BaseRepresentation
bin10011010101100111…
…110100011110011010
31222121001212002222021
4103111213310132122
5320011021322441
613312213245054
71333355565445
oct232547643632
958531762867
1020763854746
118895722438
12403593378a
131c5ba136ab
14100d92265c
15817d533d1
hex4d59f479a

20763854746 has 16 divisors (see below), whose sum is σ = 32155239168. Its totient is φ = 10045540800.

The previous prime is 20763854729. The next prime is 20763854767. The reversal of 20763854746 is 64745836702.

It is a super-2 number, since 2×207638547462 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20763854693 and 20763854702.

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, 480301 + ... + 521743.

It is an arithmetic number, because the mean of its divisors is an integer number (2009702448).

Almost surely, 220763854746 is an apocalyptic number.

20763854746 is a deficient number, since it is larger than the sum of its proper divisors (11391384422).

20763854746 is a wasteful number, since it uses less digits than its factorization.

20763854746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49557.

The product of its (nonzero) digits is 6773760, while the sum is 52.

The spelling of 20763854746 in words is "twenty billion, seven hundred sixty-three million, eight hundred fifty-four thousand, seven hundred forty-six".

Divisors: 1 2 31 62 8081 16162 41443 82886 250511 501022 1284733 2569466 334900883 669801766 10381927373 20763854746