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1007616989 = 6619152231
BaseRepresentation
bin111100000011110…
…000001111011101
32121020000020122202
4330003300033131
54030422220424
6243552421245
733653413601
oct7403601735
92536006582
101007616989
11477856615
12241547825
131309a6192
1497b71501
155d6d82ae
hex3c0f03dd

1007616989 has 4 divisors (see below), whose sum is σ = 1007775840. Its totient is φ = 1007458140.

The previous prime is 1007616941. The next prime is 1007616991. The reversal of 1007616989 is 9896167001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1007616989 - 216 = 1007551453 is a prime.

It is a super-2 number, since 2×10076169892 = 2030583993042852242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1007616089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69497 + ... + 82734.

It is an arithmetic number, because the mean of its divisors is an integer number (251943960).

Almost surely, 21007616989 is an apocalyptic number.

It is an amenable number.

1007616989 is a deficient number, since it is larger than the sum of its proper divisors (158851).

1007616989 is an equidigital number, since it uses as much as digits as its factorization.

1007616989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158850.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 1007616989 is about 31742.9833034011. The cubic root of 1007616989 is about 1002.5325769726.

The spelling of 1007616989 in words is "one billion, seven million, six hundred sixteen thousand, nine hundred eighty-nine".

Divisors: 1 6619 152231 1007616989