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142902550 = 25272811453
BaseRepresentation
bin10001000010010…
…00010100010110
3100221220012110001
420201020110112
5243040340200
622102521514
73353436340
oct1041102426
9327805401
10142902550
117373488a
123ba3629a
13237b552b
1414d9c290
15c82b76a
hex8848516

142902550 has 48 divisors (see below), whose sum is σ = 305060832. Its totient is φ = 48787200.

The previous prime is 142902521. The next prime is 142902563. The reversal of 142902550 is 55209241.

It is a super-2 number, since 2×1429025502 = 40842277593005000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97624 + ... + 99076.

It is an arithmetic number, because the mean of its divisors is an integer number (6355434).

Almost surely, 2142902550 is an apocalyptic number.

142902550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142902550 is an abundant number, since it is smaller than the sum of its proper divisors (162158282).

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

142902550 is a wasteful number, since it uses less digits than its factorization.

142902550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 142902550 is about 11954.1854594949. The cubic root of 142902550 is about 522.8133389133.

The spelling of 142902550 in words is "one hundred forty-two million, nine hundred two thousand, five hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 281 350 562 1405 1453 1967 2810 2906 3934 7025 7265 9835 10171 14050 14530 19670 20342 36325 49175 50855 72650 98350 101710 254275 408293 508550 816586 2041465 2858051 4082930 5716102 10207325 14290255 20414650 28580510 71451275 142902550