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23072503321 = 713724058919
BaseRepresentation
bin10101011111001110…
…100111011000011001
32012112221222121110001
4111133032213120121
5334223030101241
614333243453001
71444521020350
oct253716473031
965487877401
1023072503321
11986a91026a
12457ab27161
1322390c623a
14118c3a2997
15900882431
hex55f3a7619

23072503321 has 8 divisors (see below), whose sum is σ = 26561047680. Its totient is φ = 19632077088.

The previous prime is 23072503319. The next prime is 23072503351. The reversal of 23072503321 is 12330527032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23072503321 - 21 = 23072503319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23072503321.

It is not an unprimeable number, because it can be changed into a prime (23072503351) 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, 12028501 + ... + 12030418.

It is an arithmetic number, because the mean of its divisors is an integer number (3320130960).

Almost surely, 223072503321 is an apocalyptic number.

It is an amenable number.

23072503321 is a deficient number, since it is larger than the sum of its proper divisors (3488544359).

23072503321 is a wasteful number, since it uses less digits than its factorization.

23072503321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24059063.

The product of its (nonzero) digits is 7560, while the sum is 28.

The spelling of 23072503321 in words is "twenty-three billion, seventy-two million, five hundred three thousand, three hundred twenty-one".

Divisors: 1 7 137 959 24058919 168412433 3296071903 23072503321