Search a number
-
+
23230031232 = 273521116113
BaseRepresentation
bin10101101000100111…
…100010010110000000
32012221221101212010010
4111220213202112000
5340033341444412
614401032104520
71451443002402
oct255047422600
965857355103
1023230031232
119940824321
124603835140
13226292c715
1411a528ab72
1590e5ec33c
hex5689e2580

23230031232 has 64 divisors (see below), whose sum is σ = 61823738160. Its totient is φ = 7728414720.

The previous prime is 23230031221. The next prime is 23230031249. The reversal of 23230031232 is 23213003232.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 23230031199 and 23230031208.

It is a congruent number.

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, 142008 + ... + 258120.

Almost surely, 223230031232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23230031232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30911869080).

23230031232 is an abundant number, since it is smaller than the sum of its proper divisors (38593706928).

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

23230031232 is a wasteful number, since it uses less digits than its factorization.

23230031232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116651 (or 116639 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 23230031232 its reverse (23213003232), we get a palindrome (46443034464).

The spelling of 23230031232 in words is "twenty-three billion, two hundred thirty million, thirty-one thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 384 521 1042 1563 2084 3126 4168 6252 8336 12504 16672 25008 33344 50016 66688 100032 116113 200064 232226 348339 464452 696678 928904 1393356 1857808 2786712 3715616 5573424 7431232 11146848 14862464 22293696 44587392 60494873 120989746 181484619 241979492 362969238 483958984 725938476 967917968 1451876952 1935835936 2903753904 3871671872 5807507808 7743343744 11615015616 23230031232