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149270830 = 2529547941
BaseRepresentation
bin10001110010110…
…11000100101110
3101101212202002021
420321123010232
5301203131310
622451220354
73461531632
oct1071330456
9341782067
10149270830
1177294425
1241ba76ba
1324c05047
1415b78dc2
15d1885da
hex8e5b12e

149270830 has 32 divisors (see below), whose sum is σ = 278756640. Its totient is φ = 57482880.

The previous prime is 149270827. The next prime is 149270831. The reversal of 149270830 is 38072941.

149270830 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149270831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158160 + ... + 159100.

It is an arithmetic number, because the mean of its divisors is an integer number (8711145).

Almost surely, 2149270830 is an apocalyptic number.

149270830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149270830 is a deficient number, since it is larger than the sum of its proper divisors (129485810).

149270830 is a wasteful number, since it uses less digits than its factorization.

149270830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 149270830 is about 12217.6442082752. The cubic root of 149270830 is about 530.4669315751.

The spelling of 149270830 in words is "one hundred forty-nine million, two hundred seventy thousand, eight hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 547 941 1094 1882 2735 4705 5470 9410 15863 27289 31726 54578 79315 136445 158630 272890 514727 1029454 2573635 5147270 14927083 29854166 74635415 149270830