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150120405 = 3351112003
BaseRepresentation
bin10001111001010…
…10011111010101
3101110110220111000
420330222133111
5301412323110
622521333513
73502000551
oct1074523725
9343426430
10150120405
1177814756
1242337299
1325141956
1415d1a861
15d2a51c0
hex8f2a7d5

150120405 has 16 divisors (see below), whose sum is σ = 266880960. Its totient is φ = 80064144.

The previous prime is 150120403. The next prime is 150120407. The reversal of 150120405 is 504021051.

It is an interprime number because it is at equal distance from previous prime (150120403) and next prime (150120407).

It is not a de Polignac number, because 150120405 - 21 = 150120403 is a prime.

It is a super-2 number, since 2×1501204052 = 45072271994728050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150120403) 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, 555867 + ... + 556136.

It is an arithmetic number, because the mean of its divisors is an integer number (16680060).

Almost surely, 2150120405 is an apocalyptic number.

150120405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

150120405 is a deficient number, since it is larger than the sum of its proper divisors (116760555).

150120405 is a wasteful number, since it uses less digits than its factorization.

150120405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112017 (or 1112011 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 150120405 is about 12252.3632414322. The cubic root of 150120405 is about 531.4714125750.

Adding to 150120405 its reverse (504021051), we get a palindrome (654141456).

The spelling of 150120405 in words is "one hundred fifty million, one hundred twenty thousand, four hundred five".

Divisors: 1 3 5 9 15 27 45 135 1112003 3336009 5560015 10008027 16680045 30024081 50040135 150120405