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4015030020 = 223566917167
BaseRepresentation
bin1110111101010000…
…0111111100000100
3101100210222122202120
43233110013330010
531210321430040
61502224005540
7201332122611
oct35724077404
911323878676
104015030020
11178041a531
129407608b0
134bca84911
142a1347508
151877437d0
hexef507f04

4015030020 has 24 divisors (see below), whose sum is σ = 11242084224. Its totient is φ = 1070674656.

The previous prime is 4015029989. The next prime is 4015030027. The reversal of 4015030020 is 200305104.

It is a super-2 number, since 2×40150300202 = 32240932123002400800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (4015030027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33458524 + ... + 33458643.

It is an arithmetic number, because the mean of its divisors is an integer number (468420176).

Almost surely, 24015030020 is an apocalyptic number.

It is an amenable number.

4015030020 is an abundant number, since it is smaller than the sum of its proper divisors (7227054204).

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

4015030020 is a wasteful number, since it uses less digits than its factorization.

4015030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66917179 (or 66917177 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 4015030020 is about 63364.2645345150. The cubic root of 4015030020 is about 1589.3867893649.

Adding to 4015030020 its reverse (200305104), we get a palindrome (4215335124).

The spelling of 4015030020 in words is "four billion, fifteen million, thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 66917167 133834334 200751501 267668668 334585835 401503002 669171670 803006004 1003757505 1338343340 2007515010 4015030020