Search a number
-
+
68945195 = 5112831373
BaseRepresentation
bin1000001110000…
…00010100101011
311210201210000202
410013000110223
5120122221240
610501422415
71465011254
oct407002453
9153653022
1068945195
1135a10600
121b10aa0b
131138c697
149229b2b
1560bd315
hex41c052b

68945195 has 24 divisors (see below), whose sum is σ = 92101968. Its totient is φ = 49501760.

The previous prime is 68945159. The next prime is 68945203. The reversal of 68945195 is 59154986.

It is a happy number.

It is not a de Polignac number, because 68945195 - 218 = 68683051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49529 + ... + 50901.

It is an arithmetic number, because the mean of its divisors is an integer number (3837582).

Almost surely, 268945195 is an apocalyptic number.

68945195 is a deficient number, since it is larger than the sum of its proper divisors (23156773).

68945195 is a wasteful number, since it uses less digits than its factorization.

68945195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1472 counting only the distinct ones).

The product of its digits is 388800, while the sum is 47.

The square root of 68945195 is about 8303.3243342652. The cubic root of 68945195 is about 410.0479717813.

The spelling of 68945195 in words is "sixty-eight million, nine hundred forty-five thousand, one hundred ninety-five".

Divisors: 1 5 11 55 83 121 415 605 913 1373 4565 6865 10043 15103 50215 75515 113959 166133 569795 830665 1253549 6267745 13789039 68945195