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450432157 = 729192493
BaseRepresentation
bin11010110110010…
…000110010011101
31011101120022202111
4122312100302131
51410302312112
6112410154021
714106416200
oct3266206235
91141508674
10450432157
1121129138a
12106a22911
137241b606
1443b71937
15298265a7
hex1ad90c9d

450432157 has 6 divisors (see below), whose sum is σ = 523972158. Its totient is φ = 386084664.

The previous prime is 450432131. The next prime is 450432163. The reversal of 450432157 is 751234054.

It can be written as a sum of positive squares in only one way, i.e., 300883716 + 149548441 = 17346^2 + 12229^2 .

It is a de Polignac number, because none of the positive numbers 2k-450432157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450432127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4596198 + ... + 4596295.

It is an arithmetic number, because the mean of its divisors is an integer number (87328693).

Almost surely, 2450432157 is an apocalyptic number.

It is an amenable number.

450432157 is a deficient number, since it is larger than the sum of its proper divisors (73540001).

450432157 is an equidigital number, since it uses as much as digits as its factorization.

450432157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9192507 (or 9192500 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 450432157 is about 21223.3870294070. The cubic root of 450432157 is about 766.5546620456.

The spelling of 450432157 in words is "four hundred fifty million, four hundred thirty-two thousand, one hundred fifty-seven".

Divisors: 1 7 49 9192493 64347451 450432157