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150438972 = 22397112911
BaseRepresentation
bin10001111011110…
…00010000111100
3101111002002110210
420331320100330
5302003021342
622532232420
73504465405
oct1075702074
9344062423
10150438972
1177a12032
124246b710
1325223958
1415da09ac
15d31979c
hex8f7843c

150438972 has 24 divisors (see below), whose sum is σ = 351412992. Its totient is φ = 50090800.

The previous prime is 150438971. The next prime is 150439027. The reversal of 150438972 is 279834051.

150438972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 150438972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150438971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5197 + ... + 18107.

It is an arithmetic number, because the mean of its divisors is an integer number (14642208).

Almost surely, 2150438972 is an apocalyptic number.

150438972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

150438972 is an abundant number, since it is smaller than the sum of its proper divisors (200974020).

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

150438972 is a wasteful number, since it uses less digits than its factorization.

150438972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13889 (or 13887 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 150438972 is about 12265.3565785916. The cubic root of 150438972 is about 531.8470879805.

The spelling of 150438972 in words is "one hundred fifty million, four hundred thirty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 971 1942 2913 3884 5826 11652 12911 25822 38733 51644 77466 154932 12536581 25073162 37609743 50146324 75219486 150438972