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1415211990 = 23547173733
BaseRepresentation
bin101010001011010…
…0110101111010110
310122121222012212220
41110112212233112
510344243240430
6352232523210
750033050323
oct12426465726
93577865786
101415211990
11666939795
12335b50506
1319727675a
14d5d51b4a
158439c110
hex545a6bd6

1415211990 has 16 divisors (see below), whose sum is σ = 3396508848. Its totient is φ = 377389856.

The previous prime is 1415211961. The next prime is 1415212003. The reversal of 1415211990 is 991125141.

It is a congruent number.

It is an unprimeable number.

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, 23586837 + ... + 23586896.

It is an arithmetic number, because the mean of its divisors is an integer number (212281803).

Almost surely, 21415211990 is an apocalyptic number.

1415211990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1415211990 is an abundant number, since it is smaller than the sum of its proper divisors (1981296858).

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

1415211990 is a wasteful number, since it uses less digits than its factorization.

1415211990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47173743.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 1415211990 is about 37619.3034225781. The cubic root of 1415211990 is about 1122.7261370149.

The spelling of 1415211990 in words is "one billion, four hundred fifteen million, two hundred eleven thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 47173733 94347466 141521199 235868665 283042398 471737330 707605995 1415211990