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1407690489 = 31972381879
BaseRepresentation
bin101001111100111…
…1010011011111001
310122002211002022210
41103321322123321
510340332043424
6351403405333
746612112622
oct12371723371
93562732283
101407690489
11662671777
12333523849
1319584206a
14d4d54a49
15838b3729
hex53e7a6f9

1407690489 has 8 divisors (see below), whose sum is σ = 1886448960. Its totient is φ = 933696176.

The previous prime is 1407690461. The next prime is 1407690497. The reversal of 1407690489 is 9840967041.

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

It is a cyclic number.

It is not a de Polignac number, because 1407690489 - 211 = 1407688441 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1407690409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1190349 + ... + 1191530.

It is an arithmetic number, because the mean of its divisors is an integer number (235806120).

Almost surely, 21407690489 is an apocalyptic number.

It is an amenable number.

1407690489 is a deficient number, since it is larger than the sum of its proper divisors (478758471).

1407690489 is a wasteful number, since it uses less digits than its factorization.

1407690489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382079.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 1407690489 is about 37519.2016039787. The cubic root of 1407690489 is about 1120.7335991607.

The spelling of 1407690489 in words is "one billion, four hundred seven million, six hundred ninety thousand, four hundred eighty-nine".

Divisors: 1 3 197 591 2381879 7145637 469230163 1407690489