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1670996613 = 311133895097
BaseRepresentation
bin110001110011001…
…0110001010000101
311022110021102102110
41203212112022011
511410233342423
6433451131233
756260144146
oct14346261205
94273242373
101670996613
11788263540
123a7743b19
132082630c0
1411bcd5acd
159ba75193
hex63996285

1670996613 has 16 divisors (see below), whose sum is σ = 2617505856. Its totient is φ = 934823040.

The previous prime is 1670996603. The next prime is 1670996633. The reversal of 1670996613 is 3166990761.

It is not a de Polignac number, because 1670996613 - 25 = 1670996581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670996603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1947120 + ... + 1947977.

It is an arithmetic number, because the mean of its divisors is an integer number (163594116).

Almost surely, 21670996613 is an apocalyptic number.

1670996613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1670996613 is a deficient number, since it is larger than the sum of its proper divisors (946509243).

1670996613 is a wasteful number, since it uses less digits than its factorization.

1670996613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895124.

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 1670996613 is about 40877.8254436314. The cubic root of 1670996613 is about 1186.6569574368.

The spelling of 1670996613 in words is "one billion, six hundred seventy million, nine hundred ninety-six thousand, six hundred thirteen".

Divisors: 1 3 11 13 33 39 143 429 3895097 11685291 42846067 50636261 128538201 151908783 556998871 1670996613