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150556261 is a prime number
BaseRepresentation
bin10001111100101…
…00111001100101
3101111022001100211
420332110321211
5302020300021
622534535421
73505464352
oct1076247145
9344261324
10150556261
1177a92169
1242507571
132526515b
1415dd1629
15d33e3e1
hex8f94e65

150556261 has 2 divisors, whose sum is σ = 150556262. Its totient is φ = 150556260.

The previous prime is 150556213. The next prime is 150556271. The reversal of 150556261 is 162655051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125305636 + 25250625 = 11194^2 + 5025^2 .

It is a cyclic number.

It is not a de Polignac number, because 150556261 - 29 = 150555749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150556271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75278130 + 75278131.

It is an arithmetic number, because the mean of its divisors is an integer number (75278131).

Almost surely, 2150556261 is an apocalyptic number.

It is an amenable number.

150556261 is a deficient number, since it is larger than the sum of its proper divisors (1).

150556261 is an equidigital number, since it uses as much as digits as its factorization.

150556261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 150556261 is about 12270.1369593008. The cubic root of 150556261 is about 531.9852693926.

It can be divided in two parts, 15055 and 6261, that added together give a square (21316 = 1462).

The spelling of 150556261 in words is "one hundred fifty million, five hundred fifty-six thousand, two hundred sixty-one".