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1297201499 = 11213155339
BaseRepresentation
bin100110101010001…
…1011100101011011
310100101220122220222
41031110123211123
510124040421444
6332415310255
744101013366
oct11524334533
93311818828
101297201499
11606266760
1230251b38b
13178998269
14c43d30dd
1578d3aeee
hex4d51b95b

1297201499 has 8 divisors (see below), whose sum is σ = 1415818560. Its totient is φ = 1178699400.

The previous prime is 1297201487. The next prime is 1297201519. The reversal of 1297201499 is 9941027921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1297201499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1297201429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4229 + ... + 51110.

It is an arithmetic number, because the mean of its divisors is an integer number (176977320).

Almost surely, 21297201499 is an apocalyptic number.

1297201499 is a deficient number, since it is larger than the sum of its proper divisors (118617061).

1297201499 is a wasteful number, since it uses less digits than its factorization.

1297201499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57481.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 1297201499 is about 36016.6836202336. The cubic root of 1297201499 is about 1090.6091757969.

The spelling of 1297201499 in words is "one billion, two hundred ninety-seven million, two hundred one thousand, four hundred ninety-nine".

Divisors: 1 11 2131 23441 55339 608729 117927409 1297201499