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142930574 = 271465287
BaseRepresentation
bin10001000010011…
…11001010001110
3100221221121212222
420201033022032
5243042234244
622103255342
73353614133
oct1041171216
9327847788
10142930574
1173753946
123ba4a552
13237c5207
1414da858a
15c834bee
hex884f28e

142930574 has 4 divisors (see below), whose sum is σ = 214395864. Its totient is φ = 71465286.

The previous prime is 142930573. The next prime is 142930583. The reversal of 142930574 is 475039241.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142930573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35732642 + ... + 35732645.

It is an arithmetic number, because the mean of its divisors is an integer number (53598966).

Almost surely, 2142930574 is an apocalyptic number.

142930574 is a deficient number, since it is larger than the sum of its proper divisors (71465290).

142930574 is an equidigital number, since it uses as much as digits as its factorization.

142930574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71465289.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 142930574 is about 11955.3575437960. The cubic root of 142930574 is about 522.8475122325.

The spelling of 142930574 in words is "one hundred forty-two million, nine hundred thirty thousand, five hundred seventy-four".

Divisors: 1 2 71465287 142930574