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142557883 = 1310965991
BaseRepresentation
bin10000111111101…
…00001010111011
3100221020200122121
420133310022323
5242443323013
622051302111
73350502436
oct1037641273
9327220577
10142557883
1173519936
123b8aa937
13236c46a0
1414d0c81d
15c7ae58d
hex87f42bb

142557883 has 4 divisors (see below), whose sum is σ = 153523888. Its totient is φ = 131591880.

The previous prime is 142557859. The next prime is 142557913. The reversal of 142557883 is 388755241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 388755241 = 755536463.

It is a cyclic number.

It is not a de Polignac number, because 142557883 - 213 = 142549691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142557803) 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, 5482983 + ... + 5483008.

It is an arithmetic number, because the mean of its divisors is an integer number (38380972).

Almost surely, 2142557883 is an apocalyptic number.

142557883 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

142557883 is a deficient number, since it is larger than the sum of its proper divisors (10966005).

142557883 is a wasteful number, since it uses less digits than its factorization.

142557883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10966004.

The product of its digits is 268800, while the sum is 43.

The square root of 142557883 is about 11939.7605922397. The cubic root of 142557883 is about 522.3926756206.

The spelling of 142557883 in words is "one hundred forty-two million, five hundred fifty-seven thousand, eight hundred eighty-three".

Divisors: 1 13 10965991 142557883