Search a number
-
+
23016838637 = 1347163231109
BaseRepresentation
bin10101011011111010…
…010001010111101101
32012102002020112212002
4111123322101113231
5334114302314022
614323534422045
71443243620552
oct253372212755
965362215762
1023016838637
1198414505a1
124564361925
13222a706660
141184c32a29
158eaa39092
hex55be915ed

23016838637 has 16 divisors (see below), whose sum is σ = 25470170880. Its totient is φ = 20666601792.

The previous prime is 23016838597. The next prime is 23016838643. The reversal of 23016838637 is 73683861032.

It is a cyclic number.

It is not a de Polignac number, because 23016838637 - 214 = 23016822253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23016838591 and 23016838600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23016838657) 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, 15962 + ... + 215147.

It is an arithmetic number, because the mean of its divisors is an integer number (1591885680).

Almost surely, 223016838637 is an apocalyptic number.

It is an amenable number.

23016838637 is a deficient number, since it is larger than the sum of its proper divisors (2453332243).

23016838637 is a wasteful number, since it uses less digits than its factorization.

23016838637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231332.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 23016838637 in words is "twenty-three billion, sixteen million, eight hundred thirty-eight thousand, six hundred thirty-seven".

Divisors: 1 13 47 163 611 2119 7661 99593 231109 3004417 10862123 37670767 141207599 489719971 1770526049 23016838637