Search a number
-
+
61370785115 = 5231088949009
BaseRepresentation
bin111001001001111110…
…111101110101011011
312212102000221220102022
4321021332331311123
52001141410110430
644105432525055
74301553031523
oct711176756533
9185360856368
1061370785115
1124033232222
12ba88b5078b
135a3074a143
142d8295c683
1518e2c764e5
hexe49fbdd5b

61370785115 has 16 divisors (see below), whose sum is σ = 76855521600. Its totient is φ = 46956721152.

The previous prime is 61370785093. The next prime is 61370785129. The reversal of 61370785115 is 51158707316.

It is a cyclic number.

It is not a de Polignac number, because 61370785115 - 214 = 61370768731 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1227731 + ... + 1276739.

It is an arithmetic number, because the mean of its divisors is an integer number (4803470100).

Almost surely, 261370785115 is an apocalyptic number.

61370785115 is a deficient number, since it is larger than the sum of its proper divisors (15484736485).

61370785115 is a wasteful number, since it uses less digits than its factorization.

61370785115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59926.

The product of its (nonzero) digits is 176400, while the sum is 44.

The spelling of 61370785115 in words is "sixty-one billion, three hundred seventy million, seven hundred eighty-five thousand, one hundred fifteen".

Divisors: 1 5 23 115 10889 49009 54445 245045 250447 1127207 1252235 5636035 533659001 2668295005 12274157023 61370785115