Search a number
-
+
20875014143 = 3113122922447
BaseRepresentation
bin10011011100001111…
…110110111111111111
31222212211000120222222
4103130033312333333
5320223000423033
613331223555555
71336205456354
oct233417667777
958784016888
1020875014143
118942446105
124066bbbbbb
131c78a63699
1410205ba62b
158229ae598
hex4dc3f6fff

20875014143 has 16 divisors (see below), whose sum is σ = 21808680960. Its totient is φ = 19958983200.

The previous prime is 20875014113. The next prime is 20875014151. The reversal of 20875014143 is 34141057802.

It is a cyclic number.

It is not a de Polignac number, because 20875014143 - 26 = 20875014079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20875014113) 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, 918746 + ... + 941192.

It is an arithmetic number, because the mean of its divisors is an integer number (1363042560).

Almost surely, 220875014143 is an apocalyptic number.

20875014143 is a deficient number, since it is larger than the sum of its proper divisors (933666817).

20875014143 is a wasteful number, since it uses less digits than its factorization.

20875014143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22838.

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 20875014143 in words is "twenty billion, eight hundred seventy-five million, fourteen thousand, one hundred forty-three".

Divisors: 1 31 131 229 4061 7099 22447 29999 695857 929969 2940557 5140363 91157267 159351253 673387553 20875014143