Search a number
-
+
107947939 = 1129333493
BaseRepresentation
bin1100110111100…
…10011110100011
321112010022201211
412123302132203
5210113313224
614413410551
72450354011
oct633623643
9245108654
10107947939
1155a2a980
1230199a57
1319497328
141049d8b1
159724894
hex66f27a3

107947939 has 8 divisors (see below), whose sum is σ = 118166832. Its totient is φ = 97796640.

The previous prime is 107947877. The next prime is 107947951. The reversal of 107947939 is 939749701.

It is a happy number.

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 107947939 - 223 = 99559331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 107947892 and 107947901.

It is not an unprimeable number, because it can be changed into a prime (107947969) 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, 13524 + ... + 19969.

It is an arithmetic number, because the mean of its divisors is an integer number (14770854).

Almost surely, 2107947939 is an apocalyptic number.

107947939 is a deficient number, since it is larger than the sum of its proper divisors (10218893).

107947939 is a wasteful number, since it uses less digits than its factorization.

107947939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33797.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 107947939 is about 10389.7997574544. The cubic root of 107947939 is about 476.1437832120.

The spelling of 107947939 in words is "one hundred seven million, nine hundred forty-seven thousand, nine hundred thirty-nine".

Divisors: 1 11 293 3223 33493 368423 9813449 107947939