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142352497 = 7223126311
BaseRepresentation
bin10000111110000…
…10000001110001
3100220212020220201
420133002001301
5242420234442
622043035201
73345655600
oct1037020161
9326766821
10142352497
11733995a1
123b80bb01
1323652061
1414c97a37
15c76d7b7
hex87c2071

142352497 has 12 divisors (see below), whose sum is σ = 172794816. Its totient is φ = 116710440.

The previous prime is 142352477. The next prime is 142352501. The reversal of 142352497 is 794253241.

It is not a de Polignac number, because 142352497 - 211 = 142350449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142352417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62029 + ... + 64282.

It is an arithmetic number, because the mean of its divisors is an integer number (14399568).

Almost surely, 2142352497 is an apocalyptic number.

It is an amenable number.

142352497 is a deficient number, since it is larger than the sum of its proper divisors (30442319).

142352497 is a wasteful number, since it uses less digits than its factorization.

142352497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126348 (or 126341 counting only the distinct ones).

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

The square root of 142352497 is about 11931.1565658992. The cubic root of 142352497 is about 522.1416811776.

The spelling of 142352497 in words is "one hundred forty-two million, three hundred fifty-two thousand, four hundred ninety-seven".

Divisors: 1 7 23 49 161 1127 126311 884177 2905153 6189239 20336071 142352497