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1995001064 = 237199711931
BaseRepresentation
bin111011011101001…
…0100110011101000
312011000221112222022
41312322110303220
513041210013224
6525543444012
7100303141430
oct16672246350
95130845868
101995001064
11934142911
12478156608
1325a416c04
1414cd572c0
15ba22665e
hex76e94ce8

1995001064 has 64 divisors (see below), whose sum is σ = 4506969600. Its totient is φ = 808747200.

The previous prime is 1995001061. The next prime is 1995001067. The reversal of 1995001064 is 4601005991.

It is an interprime number because it is at equal distance from previous prime (1995001061) and next prime (1995001067).

It is a super-2 number, since 2×19950010642 = 7960058490722264192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1995001061) 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 15 ways as a sum of consecutive naturals, for example, 1032179 + ... + 1034109.

It is an arithmetic number, because the mean of its divisors is an integer number (70421400).

Almost surely, 21995001064 is an apocalyptic number.

1995001064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1995001064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2253484800).

1995001064 is an abundant number, since it is smaller than the sum of its proper divisors (2511968536).

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

1995001064 is a wasteful number, since it uses less digits than its factorization.

1995001064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934 (or 2930 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1995001064 is about 44665.4347790324. The cubic root of 1995001064 is about 1258.8704633233.

The spelling of 1995001064 in words is "one billion, nine hundred ninety-five million, one thousand, sixty-four".