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153122733481 = 251215592
BaseRepresentation
bin1000111010011011010…
…0110111110110101001
3112122020101102210220011
42032212310313312221
510002043404432411
6154202115331521
714030344521334
oct2164664676651
9478211383804
10153122733481
1159a36878023
12258145b0ba1
1311593506b53
1475a83c561b
153eb2d18c21
hex23a6d37da9

153122733481 has 9 divisors (see below), whose sum is σ = 153833889373. Its totient is φ = 152414855500.

The previous prime is 153122733469. The next prime is 153122733521. The reversal of 153122733481 is 184337221351.

It is a happy number.

The square root of 153122733481 is 391309.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 153122733481 - 227 = 152988515753 is a prime.

It is a super-2 number, since 2×1531227334812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153122733431) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 98217780 + ... + 98219338.

Almost surely, 2153122733481 is an apocalyptic number.

153122733481 is the 391309-th square number.

153122733481 is the 195655-th centered octagonal number.

It is an amenable number.

153122733481 is a deficient number, since it is larger than the sum of its proper divisors (711155892).

153122733481 is an frugal number, since it uses more digits than its factorization.

153122733481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3620 (or 1810 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The spelling of 153122733481 in words is "one hundred fifty-three billion, one hundred twenty-two million, seven hundred thirty-three thousand, four hundred eighty-one".

Divisors: 1 251 1559 63001 391309 2430481 98218559 610050731 153122733481