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157070613061 = 891764838349
BaseRepresentation
bin1001001001001000100…
…0110101101001000101
3120000102112001212120101
42102102020311221011
510033140034104221
6200053544204101
714230233116335
oct2222210655105
9500375055511
10157070613061
11606822a241a
1226536769631
1311a723a9c7b
14786084d0c5
1541446e5d91
hex2492235a45

157070613061 has 4 divisors (see below), whose sum is σ = 158835451500. Its totient is φ = 155305774624.

The previous prime is 157070613023. The next prime is 157070613071. The reversal of 157070613061 is 160316070751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160316070751 = 179430357103.

It can be written as a sum of positive squares in 2 ways, for example, as 63430941025 + 93639672036 = 251855^2 + 306006^2 .

It is a cyclic number.

It is not a de Polignac number, because 157070613061 - 227 = 156936395333 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 157070613061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157070613071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 882419086 + ... + 882419263.

It is an arithmetic number, because the mean of its divisors is an integer number (39708862875).

Almost surely, 2157070613061 is an apocalyptic number.

It is an amenable number.

157070613061 is a deficient number, since it is larger than the sum of its proper divisors (1764838439).

157070613061 is an equidigital number, since it uses as much as digits as its factorization.

157070613061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764838438.

The product of its (nonzero) digits is 26460, while the sum is 37.

The spelling of 157070613061 in words is "one hundred fifty-seven billion, seventy million, six hundred thirteen thousand, sixty-one".

Divisors: 1 89 1764838349 157070613061