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142150715 = 5721095323
BaseRepresentation
bin10000111100100…
…00110000111011
3100220111000010022
420132100300323
5242342310330
622034441055
73344155400
oct1036206073
9326430108
10142150715
1173270a33
123b73318b
13235b1265
1414c442a7
15c72dae5
hex8790c3b

142150715 has 24 divisors (see below), whose sum is σ = 200288880. Its totient is φ = 96562368.

The previous prime is 142150709. The next prime is 142150739. The reversal of 142150715 is 517051241.

It is not a de Polignac number, because 142150715 - 24 = 142150699 is a prime.

It is a super-2 number, since 2×1421507152 = 40413651550022450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24044 + ... + 29366.

It is an arithmetic number, because the mean of its divisors is an integer number (8345370).

Almost surely, 2142150715 is an apocalyptic number.

142150715 is a deficient number, since it is larger than the sum of its proper divisors (58138165).

142150715 is a wasteful number, since it uses less digits than its factorization.

142150715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5451 (or 5444 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 142150715 is about 11922.6974716295. The cubic root of 142150715 is about 521.8948558308.

It can be divided in two parts, 1421 and 50715, that multiplied together give a triangular number (72066015 = T12005).

The spelling of 142150715 in words is "one hundred forty-two million, one hundred fifty thousand, seven hundred fifteen".

Divisors: 1 5 7 35 49 109 245 545 763 3815 5323 5341 26615 26705 37261 186305 260827 580207 1304135 2901035 4061449 20307245 28430143 142150715