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407949290971 is a prime number
BaseRepresentation
bin1011110111110111010…
…11000010110111011011
31102222222200120012011221
411323323223002313123
523140440004302341
6511224225032511
741321235521305
oct5737353026733
91388880505157
10407949290971
11148012815362
1267091485737
132c614508401
1415a5dc2a975
15a929728ed1
hex5efbac2ddb

407949290971 has 2 divisors, whose sum is σ = 407949290972. Its totient is φ = 407949290970.

The previous prime is 407949290863. The next prime is 407949290993. The reversal of 407949290971 is 179092949704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 407949290971 - 215 = 407949258203 is a prime.

It is not a weakly prime, because it can be changed into another prime (407949297971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203974645485 + 203974645486.

It is an arithmetic number, because the mean of its divisors is an integer number (203974645486).

Almost surely, 2407949290971 is an apocalyptic number.

407949290971 is a deficient number, since it is larger than the sum of its proper divisors (1).

407949290971 is an equidigital number, since it uses as much as digits as its factorization.

407949290971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10287648, while the sum is 61.

The spelling of 407949290971 in words is "four hundred seven billion, nine hundred forty-nine million, two hundred ninety thousand, nine hundred seventy-one".