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150231953 = 712115943
BaseRepresentation
bin10001111010001…
…01101110010001
3101110200120111102
420331011232101
5301424410303
622523554145
73502644014
oct1075055621
9343616442
10150231953
1177890543
124238b955
1325180661
1415d4937b
15d2c8288
hex8f45b91

150231953 has 4 divisors (see below), whose sum is σ = 152347968. Its totient is φ = 148115940.

The previous prime is 150231947. The next prime is 150232001. The reversal of 150231953 is 359132051.

150231953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 359132051 = 2315614437.

It is not a de Polignac number, because 150231953 - 24 = 150231937 is a prime.

It is a super-4 number, since 4×1502319534 (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (150231923) 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, 1057901 + ... + 1058042.

It is an arithmetic number, because the mean of its divisors is an integer number (38086992).

Almost surely, 2150231953 is an apocalyptic number.

It is an amenable number.

150231953 is a deficient number, since it is larger than the sum of its proper divisors (2116015).

150231953 is an equidigital number, since it uses as much as digits as its factorization.

150231953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116014.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 150231953 is about 12256.9144975397. The cubic root of 150231953 is about 531.6030178138.

The spelling of 150231953 in words is "one hundred fifty million, two hundred thirty-one thousand, nine hundred fifty-three".

Divisors: 1 71 2115943 150231953