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149950983 = 37131928909
BaseRepresentation
bin10001111000000…
…01001000000111
3101110011022002010
420330001020013
5301341412413
622513545303
73500363610
oct1074011007
9343138063
10149950983
1177709436
1242275233
13250b27c0
1415cb4c07
15d26edc3
hex8f01207

149950983 has 32 divisors (see below), whose sum is σ = 259033600. Its totient is φ = 74929536.

The previous prime is 149950949. The next prime is 149951023. The reversal of 149950983 is 389059941.

It is not a de Polignac number, because 149950983 - 218 = 149688839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149950943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9268 + ... + 19641.

It is an arithmetic number, because the mean of its divisors is an integer number (8094800).

Almost surely, 2149950983 is an apocalyptic number.

149950983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

149950983 is a deficient number, since it is larger than the sum of its proper divisors (109082617).

149950983 is a wasteful number, since it uses less digits than its factorization.

149950983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28951.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 149950983 is about 12245.4474397631. The cubic root of 149950983 is about 531.2714023581.

The spelling of 149950983 in words is "one hundred forty-nine million, nine hundred fifty thousand, nine hundred eighty-three".

Divisors: 1 3 7 13 19 21 39 57 91 133 247 273 399 741 1729 5187 28909 86727 202363 375817 549271 607089 1127451 1647813 2630719 3844897 7140523 7892157 11534691 21421569 49983661 149950983