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BaseRepresentation
bin1110000010000…
…01100110011101
322012111020200111
413001001212131
5220113143323
615402530021
72626340356
oct701014635
9265436614
10117709213
1160497746
1233506911
131b50432b
14118c0d2d
15a501c0d
hex704199d

117709213 has 2 divisors, whose sum is σ = 117709214. Its totient is φ = 117709212.

The previous prime is 117709169. The next prime is 117709219. The reversal of 117709213 is 312907711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100841764 + 16867449 = 10042^2 + 4107^2 .

It is a cyclic number.

It is not a de Polignac number, because 117709213 - 213 = 117701021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117709219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58854606 + 58854607.

It is an arithmetic number, because the mean of its divisors is an integer number (58854607).

Almost surely, 2117709213 is an apocalyptic number.

It is an amenable number.

117709213 is a deficient number, since it is larger than the sum of its proper divisors (1).

117709213 is an equidigital number, since it uses as much as digits as its factorization.

117709213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 117709213 is about 10849.3876785743. The cubic root of 117709213 is about 490.0835800785.

The spelling of 117709213 in words is "one hundred seventeen million, seven hundred nine thousand, two hundred thirteen".