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142354297 = 61267571
BaseRepresentation
bin10000111110000…
…10011101111001
3100220212100101101
420133002131321
5242420314142
622043051401
73345664051
oct1037023571
9326770341
10142354297
117339a988
123b810b61
1323652b17
1414c98561
15c76e0b7
hex87c2779

142354297 has 12 divisors (see below), whose sum is σ = 147143568. Its totient is φ = 137689200.

The previous prime is 142354253. The next prime is 142354313. The reversal of 142354297 is 792453241.

It is not a de Polignac number, because 142354297 - 27 = 142354169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142354397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249022 + ... + 249592.

It is an arithmetic number, because the mean of its divisors is an integer number (12261964).

Almost surely, 2142354297 is an apocalyptic number.

142354297 is the 6889-th hex number.

It is an amenable number.

142354297 is a deficient number, since it is larger than the sum of its proper divisors (4789271).

142354297 is an frugal number, since it uses more digits than its factorization.

142354297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 699 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 142354297 is about 11931.2319984149. The cubic root of 142354297 is about 522.1438819376.

The spelling of 142354297 in words is "one hundred forty-two million, three hundred fifty-four thousand, two hundred ninety-seven".

Divisors: 1 61 67 571 3721 4087 34831 38257 249307 2124691 2333677 142354297