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150253540 = 2257512677
BaseRepresentation
bin10001111010010…
…10111111100100
3101110201200002221
420331022333210
5301431103130
622524242124
73503063653
oct1075127744
9343650087
10150253540
11778a5788
12423a0344
132518a428
1415d5319a
15d2ce87a
hex8f4afe4

150253540 has 12 divisors (see below), whose sum is σ = 315532476. Its totient is φ = 60101408.

The previous prime is 150253529. The next prime is 150253547. The reversal of 150253540 is 45352051.

It can be written as a sum of positive squares in 2 ways, for example, as 103713856 + 46539684 = 10184^2 + 6822^2 .

It is a super-2 number, since 2×1502535402 = 45152252565063200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (150253547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3756319 + ... + 3756358.

It is an arithmetic number, because the mean of its divisors is an integer number (26294373).

Almost surely, 2150253540 is an apocalyptic number.

150253540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150253540 is an abundant number, since it is smaller than the sum of its proper divisors (165278936).

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

150253540 is a wasteful number, since it uses less digits than its factorization.

150253540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7512686 (or 7512684 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 150253540 is about 12257.7950708926. The cubic root of 150253540 is about 531.6284788082.

The spelling of 150253540 in words is "one hundred fifty million, two hundred fifty-three thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 7512677 15025354 30050708 37563385 75126770 150253540