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142251704 = 2373471103
BaseRepresentation
bin10000111101010…
…01011010111000
3100220200010122122
420132221122320
5242404023304
622040540412
73345056000
oct1036513270
9326603578
10142251704
117332a8a1
123b781708
132361820a
1414c6d000
15c74d9be
hex87a96b8

142251704 has 64 divisors (see below), whose sum is σ = 317952000. Its totient is φ = 59613792.

The previous prime is 142251691. The next prime is 142251709. The reversal of 142251704 is 407152241.

142251704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142251709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128417 + ... + 129519.

It is an arithmetic number, because the mean of its divisors is an integer number (4968000).

Almost surely, 2142251704 is an apocalyptic number.

142251704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142251704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158976000).

142251704 is an abundant number, since it is smaller than the sum of its proper divisors (175700296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142251704 is a wasteful number, since it uses less digits than its factorization.

142251704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 1159 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 142251704 is about 11926.9318770587. The cubic root of 142251704 is about 522.0184175570.

The spelling of 142251704 in words is "one hundred forty-two million, two hundred fifty-one thousand, seven hundred four".

Divisors: 1 2 4 7 8 14 28 47 49 56 94 98 188 196 329 343 376 392 658 686 1103 1316 1372 2206 2303 2632 2744 4412 4606 7721 8824 9212 15442 16121 18424 30884 32242 51841 54047 61768 64484 103682 108094 128968 207364 216188 362887 378329 414728 432376 725774 756658 1451548 1513316 2540209 2903096 3026632 5080418 10160836 17781463 20321672 35562926 71125852 142251704