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152129529451 = 831832885897
BaseRepresentation
bin1000110110101110100…
…0000110011001101011
3112112200011112211002201
42031223220012121223
54443030124420301
6153515355441031
713663624443634
oct2155350063153
9475604484081
10152129529451
1159577176149
1225597a56177
1311465809063
14751252688b
153e55a2b201
hex236ba0666b

152129529451 has 4 divisors (see below), whose sum is σ = 153962415432. Its totient is φ = 150296643472.

The previous prime is 152129529443. The next prime is 152129529473. The reversal of 152129529451 is 154925921251.

152129529451 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 an emirpimes, since its reverse is a distinct semiprime: 154925921251 = 1283211207331.

It is a cyclic number.

It is not a de Polignac number, because 152129529451 - 23 = 152129529443 is a prime.

It is a super-2 number, since 2×1521295294512 (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 (152129529481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916442866 + ... + 916443031.

It is an arithmetic number, because the mean of its divisors is an integer number (38490603858).

Almost surely, 2152129529451 is an apocalyptic number.

152129529451 is a deficient number, since it is larger than the sum of its proper divisors (1832885981).

152129529451 is an equidigital number, since it uses as much as digits as its factorization.

152129529451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832885980.

The product of its digits is 324000, while the sum is 46.

The spelling of 152129529451 in words is "one hundred fifty-two billion, one hundred twenty-nine million, five hundred twenty-nine thousand, four hundred fifty-one".

Divisors: 1 83 1832885897 152129529451