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149015300 = 225271931103
BaseRepresentation
bin10001110000111…
…00101100000100
3101101101202120012
420320130230010
5301121442200
622441525352
73456415640
oct1070345404
9341352505
10149015300
117712a445
1241aa3858
1324b45945
1415b0dc20
15d137a35
hex8e1cb04

149015300 has 72 divisors (see below), whose sum is σ = 371809536. Its totient is φ = 50780160.

The previous prime is 149015291. The next prime is 149015327. The reversal of 149015300 is 3510941.

It is a happy number.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 134549 + ... + 135651.

Almost surely, 2149015300 is an apocalyptic number.

149015300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149015300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185904768).

149015300 is an abundant number, since it is smaller than the sum of its proper divisors (222794236).

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

149015300 is a wasteful number, since it uses less digits than its factorization.

149015300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 149015300 is about 12207.1823120653. The cubic root of 149015300 is about 530.1640645512.

The spelling of 149015300 in words is "one hundred forty-nine million, fifteen thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 193 350 386 700 772 965 1103 1351 1930 2206 2702 3860 4412 4825 5404 5515 6755 7721 9650 11030 13510 15442 19300 22060 27020 27575 30884 33775 38605 55150 67550 77210 110300 135100 154420 193025 212879 386050 425758 772100 851516 1064395 1490153 2128790 2980306 4257580 5321975 5960612 7450765 10643950 14901530 21287900 29803060 37253825 74507650 149015300