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159441490 = 25135373317
BaseRepresentation
bin10011000000011…
…10001001010010
3102010000110121101
421200032021102
5311304111430
623453215014
73644141665
oct1140161122
9363013541
10159441490
118200082a
124549146a
13270564a0
14172656dc
15dee6dca
hex980e252

159441490 has 64 divisors (see below), whose sum is σ = 320223456. Its totient is φ = 56788992.

The previous prime is 159441481. The next prime is 159441509. The reversal of 159441490 is 94144951.

It can be written as a sum of positive squares in 16 ways, for example, as 361 + 159441129 = 19^2 + 12627^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 502812 + ... + 503128.

Almost surely, 2159441490 is an apocalyptic number.

159441490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

159441490 is an abundant number, since it is smaller than the sum of its proper divisors (160781966).

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

159441490 is a wasteful number, since it uses less digits than its factorization.

159441490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 159441490 is about 12627.0142947571. The cubic root of 159441490 is about 542.2511079828.

The spelling of 159441490 in words is "one hundred fifty-nine million, four hundred forty-one thousand, four hundred ninety".

Divisors: 1 2 5 10 13 26 53 65 73 106 130 146 265 317 365 530 634 689 730 949 1378 1585 1898 3170 3445 3869 4121 4745 6890 7738 8242 9490 16801 19345 20605 23141 33602 38690 41210 46282 50297 84005 100594 115705 168010 218413 231410 251485 300833 436826 502970 601666 1092065 1226473 1504165 2184130 2452946 3008330 6132365 12264730 15944149 31888298 79720745 159441490