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145432151 = 23311953
BaseRepresentation
bin10001010101100…
…01111001010111
3101010122201101222
420222301321113
5244212312101
622233040555
73414103304
oct1052617127
9333581358
10145432151
1175102367
124085615b
132418ca37
141545a0ab
15cb7b01b
hex8ab1e57

145432151 has 8 divisors (see below), whose sum is σ = 152054880. Its totient is φ = 139097376.

The previous prime is 145432123. The next prime is 145432169. The reversal of 145432151 is 151234541.

It is not a de Polignac number, because 145432151 - 26 = 145432087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145432151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145432121) 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, 6191 + ... + 18143.

It is an arithmetic number, because the mean of its divisors is an integer number (19006860).

Almost surely, 2145432151 is an apocalyptic number.

145432151 is a deficient number, since it is larger than the sum of its proper divisors (6622729).

145432151 is an frugal number, since it uses more digits than its factorization.

145432151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12022 (or 11976 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 145432151 is about 12059.5253223334. The cubic root of 145432151 is about 525.8801875955.

Adding to 145432151 its reverse (151234541), we get a palindrome (296666692).

The spelling of 145432151 in words is "one hundred forty-five million, four hundred thirty-two thousand, one hundred fifty-one".

Divisors: 1 23 529 11953 12167 274919 6323137 145432151