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145231151624 = 23135326348177
BaseRepresentation
bin1000011101000001110…
…0111000001000001000
3111212212102000220201122
42013100130320020020
54334413133322444
6150415051334412
713330651264136
oct2072034701010
9455772026648
10145231151624
1156657220849
1224191751408
13109065940a0
14705a2a0756
153ba00d74ee
hex21d0738208

145231151624 has 32 divisors (see below), whose sum is σ = 298788338520. Its totient is φ = 65765047296.

The previous prime is 145231151621. The next prime is 145231151671. The reversal of 145231151624 is 426151132541.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 109541140900 + 35690010724 = 330970^2 + 188918^2 .

It is not an unprimeable number, because it can be changed into a prime (145231151621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13168577 + ... + 13179600.

Almost surely, 2145231151624 is an apocalyptic number.

It is an amenable number.

145231151624 is an abundant number, since it is smaller than the sum of its proper divisors (153557186896).

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

145231151624 is a wasteful number, since it uses less digits than its factorization.

145231151624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26348249 (or 26348245 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The spelling of 145231151624 in words is "one hundred forty-five billion, two hundred thirty-one million, one hundred fifty-one thousand, six hundred twenty-four".

Divisors: 1 2 4 8 13 26 52 53 104 106 212 424 689 1378 2756 5512 26348177 52696354 105392708 210785416 342526301 685052602 1370105204 1396453381 2740210408 2792906762 5585813524 11171627048 18153893953 36307787906 72615575812 145231151624