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13234570618 = 217479229
BaseRepresentation
bin11000101001101011…
…11000010101111010
31021011100011211212011
430110311320111322
5204101022224433
610025130440134
7645651664663
oct142465702572
937140154764
1013234570618
11568162a875
12269429304a
13132bb71499
148d798a36a
15526d393cd
hex314d7857a

13234570618 has 20 divisors (see below), whose sum is σ = 21092848290. Its totient is φ = 6227954624.

The previous prime is 13234570603. The next prime is 13234570633. The reversal of 13234570618 is 81607543231.

It is an interprime number because it is at equal distance from previous prime (13234570603) and next prime (13234570633).

It can be written as a sum of positive squares in 5 ways, for example, as 11476194129 + 1758376489 = 107127^2 + 41933^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 127428 + ... + 206656.

Almost surely, 213234570618 is an apocalyptic number.

13234570618 is a deficient number, since it is larger than the sum of its proper divisors (7858277672).

13234570618 is an frugal number, since it uses more digits than its factorization.

13234570618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79299 (or 79248 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 13234570618 in words is "thirteen billion, two hundred thirty-four million, five hundred seventy thousand, six hundred eighteen".

Divisors: 1 2 17 34 289 578 4913 9826 79229 83521 158458 167042 1346893 2693786 22897181 45794362 389252077 778504154 6617285309 13234570618