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2115142 = 237101283
BaseRepresentation
bin1000000100011001000110
310222110102121
420010121012
51020141032
6113200154
723656411
oct10043106
93873377
102115142
111215157
1286005a
13590983
143d0b78
152bba97
hex204646

2115142 has 16 divisors (see below), whose sum is σ = 3302352. Its totient is φ = 1015200.

The previous prime is 2115133. The next prime is 2115181. The reversal of 2115142 is 2415112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7333 + ... + 7615.

It is an arithmetic number, because the mean of its divisors is an integer number (206397).

22115142 is an apocalyptic number.

2115142 is a deficient number, since it is larger than the sum of its proper divisors (1187210).

2115142 is a wasteful number, since it uses less digits than its factorization.

2115142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423.

The product of its digits is 80, while the sum is 16.

The square root of 2115142 is about 1454.3527770111. The cubic root of 2115142 is about 128.3649658722.

The spelling of 2115142 in words is "two million, one hundred fifteen thousand, one hundred forty-two".

Divisors: 1 2 37 74 101 202 283 566 3737 7474 10471 20942 28583 57166 1057571 2115142