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23315751470020 = 2254231092755289
BaseRepresentation
bin1010100110100100111110…
…00101011000001111000100
310001112222000210211101121111
411103102133011120033010
511024001124334020040
6121331035223254404
74624336025341432
oct523223705301704
9101488023741544
1023315751470020
11747a177956629
1227468b9baa404
13100188707c1a9
145a86ba211d52
152a6769a3adea
hex15349f1583c4

23315751470020 has 24 divisors (see below), whose sum is σ = 48963211579800. Its totient is φ = 9326275160832.

The previous prime is 23315751469993. The next prime is 23315751470023. The reversal of 23315751470020 is 2007415751332.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3540964036 + 23312210505984 = 59506^2 + 4828272^2 .

It is a super-2 number, since 2×233157514700202 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23315751470023) 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, 7084536 + ... + 9839824.

It is an arithmetic number, because the mean of its divisors is an integer number (2040133815825).

Almost surely, 223315751470020 is an apocalyptic number.

23315751470020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23315751470020 is an abundant number, since it is smaller than the sum of its proper divisors (25647460109780).

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

23315751470020 is a wasteful number, since it uses less digits than its factorization.

23315751470020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178407 (or 3178405 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 23315751470020 in words is "twenty-three trillion, three hundred fifteen billion, seven hundred fifty-one million, four hundred seventy thousand, twenty".

Divisors: 1 2 4 5 10 20 423109 846218 1692436 2115545 2755289 4231090 5510578 8462180 11021156 13776445 27552890 55105780 1165787573501 2331575147002 4663150294004 5828937867505 11657875735010 23315751470020