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151420542649 is a prime number
BaseRepresentation
bin1000110100000101011…
…1100001111010111001
3112110211202110120001021
42031001113201322321
54440102124331044
6153321151422441
713640225243005
oct2150127417271
9473752416037
10151420542649
1159242a48942
122541a524a21
131138197133c
1474862cd705
153e13680e84
hex23415e1eb9

151420542649 has 2 divisors, whose sum is σ = 151420542650. Its totient is φ = 151420542648.

The previous prime is 151420542641. The next prime is 151420542661. The reversal of 151420542649 is 946245024151.

151420542649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93105537424 + 58315005225 = 305132^2 + 241485^2 .

It is a cyclic number.

It is not a de Polignac number, because 151420542649 - 23 = 151420542641 is a prime.

It is a super-2 number, since 2×1514205426492 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (151420542641) 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 as a sum of consecutive naturals, namely, 75710271324 + 75710271325.

It is an arithmetic number, because the mean of its divisors is an integer number (75710271325).

Almost surely, 2151420542649 is an apocalyptic number.

It is an amenable number.

151420542649 is a deficient number, since it is larger than the sum of its proper divisors (1).

151420542649 is an equidigital number, since it uses as much as digits as its factorization.

151420542649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 151420542649 in words is "one hundred fifty-one billion, four hundred twenty million, five hundred forty-two thousand, six hundred forty-nine".