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13323231152 = 2471164116871
BaseRepresentation
bin11000110100010000…
…00101111110110000
31021101112000021020122
430122020011332300
5204241221344102
610042015025412
7651106411340
oct143210057660
937345007218
1013323231152
115717686840
1226b9b0b268
13134434483a
14905668d20
1552e9ee0a2
hex31a205fb0

13323231152 has 80 divisors (see below), whose sum is σ = 32235508224. Its totient is φ = 5182464000.

The previous prime is 13323231083. The next prime is 13323231157. The reversal of 13323231152 is 25113232331.

It is not an unprimeable number, because it can be changed into a prime (13323231157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 781277 + ... + 798147.

Almost surely, 213323231152 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 13323231152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16117754112).

13323231152 is an abundant number, since it is smaller than the sum of its proper divisors (18912277072).

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

13323231152 is a wasteful number, since it uses less digits than its factorization.

13323231152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17538 (or 17532 counting only the distinct ones).

The product of its digits is 3240, while the sum is 26.

Adding to 13323231152 its reverse (25113232331), we get a palindrome (38436463483).

The spelling of 13323231152 in words is "thirteen billion, three hundred twenty-three million, two hundred thirty-one thousand, one hundred fifty-two".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 56 77 88 112 154 176 308 616 641 1232 1282 2564 4487 5128 7051 8974 10256 14102 16871 17948 28204 33742 35896 49357 56408 67484 71792 98714 112816 118097 134968 185581 197428 236194 269936 371162 394856 472388 742324 789712 944776 1299067 1484648 1889552 2598134 2969296 5196268 10392536 10814311 20785072 21628622 43257244 75700177 86514488 118957421 151400354 173028976 237914842 302800708 475829684 605601416 832701947 951659368 1211202832 1665403894 1903318736 3330807788 6661615576 13323231152