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5185142690 = 2571316013559
BaseRepresentation
bin1001101010000111…
…01111111110100010
3111101100202112120212
410311003233332202
541104344031230
62214303334122
7242330662040
oct46503577642
914340675525
105185142690
1122209724a2
1210085b1342
13648313490
143728d7390
15205328895
hex1350effa2

5185142690 has 64 divisors (see below), whose sum is σ = 11497489920. Its totient is φ = 1639526400.

The previous prime is 5185142671. The next prime is 5185142713. The reversal of 5185142690 is 962415815.

It is a super-2 number, since 2×51851426902 = 53771409431320872200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1455131 + ... + 1458689.

It is an arithmetic number, because the mean of its divisors is an integer number (179648280).

Almost surely, 25185142690 is an apocalyptic number.

5185142690 is an abundant number, since it is smaller than the sum of its proper divisors (6312347230).

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

5185142690 is a wasteful number, since it uses less digits than its factorization.

5185142690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5187.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 5185142690 is about 72007.9349099806. The cubic root of 5185142690 is about 1730.8266389280.

The spelling of 5185142690 in words is "five billion, one hundred eighty-five million, one hundred forty-two thousand, six hundred ninety".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 1601 3202 3559 7118 8005 11207 16010 17795 20813 22414 24913 35590 41626 46267 49826 56035 92534 104065 112070 124565 145691 208130 231335 249130 291382 323869 462670 647738 728455 1456910 1619345 3238690 5697959 11395918 28489795 39885713 56979590 74073467 79771426 148146934 199428565 370367335 398857130 518514269 740734670 1037028538 2592571345 5185142690