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920282163961 = 5915598002779
BaseRepresentation
bin11010110010001010001…
…01110110101011111001
310020222102001020202200011
431121011011312223321
5110034214213221321
61542434412341521
7123326310216616
oct15310505665371
93228361222604
10920282163961
11325320320876
1212a4347748a1
1368a22758364
1432782d5b50d
1518e12e31ae1
hexd645176af9

920282163961 has 4 divisors (see below), whose sum is σ = 935880166800. Its totient is φ = 904684161124.

The previous prime is 920282163959. The next prime is 920282163971. The reversal of 920282163961 is 169361282029.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 169361282029 = 239708624611.

It is a cyclic number.

It is not a de Polignac number, because 920282163961 - 21 = 920282163959 is a prime.

It is a super-2 number, since 2×9202821639612 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920282163901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7799001331 + ... + 7799001448.

It is an arithmetic number, because the mean of its divisors is an integer number (233970041700).

Almost surely, 2920282163961 is an apocalyptic number.

It is an amenable number.

920282163961 is a deficient number, since it is larger than the sum of its proper divisors (15598002839).

920282163961 is a wasteful number, since it uses less digits than its factorization.

920282163961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15598002838.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 920282163961 in words is "nine hundred twenty billion, two hundred eighty-two million, one hundred sixty-three thousand, nine hundred sixty-one".

Divisors: 1 59 15598002779 920282163961