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145913148 = 22324053143
BaseRepresentation
bin10001011001001…
…11010100111100
3101011120011012200
420230213110330
5244323210043
622251231500
73421145523
oct1054472474
9334504180
10145913148
1175400787
1240a48590
13242ca954
14155434ba
15cc237d3
hex8b2753c

145913148 has 18 divisors (see below), whose sum is σ = 368836104. Its totient is φ = 48637704.

The previous prime is 145913143. The next prime is 145913149. The reversal of 145913148 is 841319541.

145913148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4053143 = 145913148 / (1 + 4 + 5 + 9 + 1 + 3 + 1 + 4 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145913143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2026536 + ... + 2026607.

Almost surely, 2145913148 is an apocalyptic number.

145913148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

145913148 is an abundant number, since it is smaller than the sum of its proper divisors (222922956).

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

145913148 is a wasteful number, since it uses less digits than its factorization.

145913148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053153 (or 4053148 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 145913148 is about 12079.4514776127. The cubic root of 145913148 is about 526.4593086032.

The spelling of 145913148 in words is "one hundred forty-five million, nine hundred thirteen thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 4053143 8106286 12159429 16212572 24318858 36478287 48637716 72956574 145913148