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151293890 = 25112335903
BaseRepresentation
bin10010000010010…
…00111111000010
3101112200112012102
421001020333002
5302212401030
623002430402
73514656026
oct1101107702
9345615172
10151293890
1178446380
1242802402
1325462b17
1416144386
15d437c45
hex9048fc2

151293890 has 32 divisors (see below), whose sum is σ = 298411776. Its totient is φ = 54770560.

The previous prime is 151293889. The next prime is 151293983. The reversal of 151293890 is 98392151.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 22679 + ... + 28581.

It is an arithmetic number, because the mean of its divisors is an integer number (9325368).

Almost surely, 2151293890 is an apocalyptic number.

151293890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151293890 is a deficient number, since it is larger than the sum of its proper divisors (147117886).

151293890 is a wasteful number, since it uses less digits than its factorization.

151293890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6154.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 151293890 is about 12300.1581290648. The cubic root of 151293890 is about 532.8526497982.

The spelling of 151293890 in words is "one hundred fifty-one million, two hundred ninety-three thousand, eight hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 233 466 1165 2330 2563 5126 5903 11806 12815 25630 29515 59030 64933 129866 324665 649330 1375399 2750798 6876995 13753990 15129389 30258778 75646945 151293890