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2115505142 = 24324598897
BaseRepresentation
bin111111000011000…
…0000101111110110
312110102200210111022
41332012000233312
513313032131032
6545530341142
7103265332322
oct17606005766
95412623438
102115505142
11996169363
124b058a7b2
132793893ba
14160d64982
15c5acb512
hex7e180bf6

2115505142 has 8 divisors (see below), whose sum is σ = 3247054536. Its totient is φ = 1033153632.

The previous prime is 2115505127. The next prime is 2115505153. The reversal of 2115505142 is 2415055112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12299363 + ... + 12299534.

It is an arithmetic number, because the mean of its divisors is an integer number (405881817).

Almost surely, 22115505142 is an apocalyptic number.

2115505142 is a deficient number, since it is larger than the sum of its proper divisors (1131549394).

2115505142 is a wasteful number, since it uses less digits than its factorization.

2115505142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24598942.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 2115505142 is about 45994.6207941755. The cubic root of 2115505142 is about 1283.7231164273.

The spelling of 2115505142 in words is "two billion, one hundred fifteen million, five hundred five thousand, one hundred forty-two".

Divisors: 1 2 43 86 24598897 49197794 1057752571 2115505142