Search a number
-
+
39906341020 = 22571321926561
BaseRepresentation
bin100101001010100110…
…100111000010011100
310211000010211011112101
4211022212213002130
51123212010403040
630155511214444
72611626205360
oct451246470234
9124003734471
1039906341020
1115a190a8727
127898677424
1339bc84c050
141d07d8b2a0
15108868609a
hex94a9a709c

39906341020 has 48 divisors (see below), whose sum is σ = 103142547648. Its totient is φ = 12629698560.

The previous prime is 39906341017. The next prime is 39906341021. The reversal of 39906341020 is 2014360993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39906341021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10961461 + ... + 10965100.

It is an arithmetic number, because the mean of its divisors is an integer number (2148803076).

Almost surely, 239906341020 is an apocalyptic number.

It is an amenable number.

39906341020 is an abundant number, since it is smaller than the sum of its proper divisors (63236206628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39906341020 is a wasteful number, since it uses less digits than its factorization.

39906341020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21926590 (or 21926588 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 39906341020 in words is "thirty-nine billion, nine hundred six million, three hundred forty-one thousand, twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 21926561 43853122 87706244 109632805 153485927 219265610 285045293 306971854 438531220 570090586 613943708 767429635 1140181172 1425226465 1534859270 1995317051 2850452930 3069718540 3990634102 5700905860 7981268204 9976585255 19953170510 39906341020