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157634980546729 = 7217936112
BaseRepresentation
bin100011110101111001000001…
…000001010000100010101001
3202200010202102211100201100211
4203311321001001100202221
5131130142420004443404
61315132302122301121
745126515524464100
oct4365710101204251
9680122384321324
10157634980546729
114625568aa8a654
121581a8700577a1
1369c5bb7cc40aa
142acd8065bb037
1513356aa987b04
hex8f5e410508a9

157634980546729 has 9 divisors (see below), whose sum is σ = 183371406137181. Its totient is φ = 135115622279820.

The previous prime is 157634980546697. The next prime is 157634980546733. The reversal of 157634980546729 is 927645089436751.

The square root of 157634980546729 is 12555277.

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

It is not a de Polignac number, because 157634980546729 - 25 = 157634980546697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157634980546129) 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 8 ways as a sum of consecutive naturals, for example, 86990134 + ... + 88783744.

It is an arithmetic number, because the mean of its divisors is an integer number (20374600681909).

It is a 1-persistent number, because it is pandigital, but 2⋅157634980546729 = 315269961093458 is not.

Almost surely, 2157634980546729 is an apocalyptic number.

157634980546729 is the 12555277-th square number.

157634980546729 is the 6277639-th centered octagonal number.

It is an amenable number.

157634980546729 is a deficient number, since it is larger than the sum of its proper divisors (25736425590452).

157634980546729 is an frugal number, since it uses more digits than its factorization.

157634980546729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3587236 (or 1793618 counting only the distinct ones).

The product of its (nonzero) digits is 2743372800, while the sum is 76.

The spelling of 157634980546729 in words is "one hundred fifty-seven trillion, six hundred thirty-four billion, nine hundred eighty million, five hundred forty-six thousand, seven hundred twenty-nine".

Divisors: 1 7 49 1793611 12555277 87886939 3217040419321 22519282935247 157634980546729