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1442864901 = 31787269141
BaseRepresentation
bin101011000000000…
…0101111100000101
310201120000010112210
41112000011330011
510423333134101
6355101334033
750520102132
oct12600057405
93646003483
101442864901
11680506835
12343267319
1319cc0931a
14d98ad589
1586a107d6
hex56005f05

1442864901 has 8 divisors (see below), whose sum is σ = 1924903584. Its totient is φ = 961368080.

The previous prime is 1442864879. The next prime is 1442864909. The reversal of 1442864901 is 1094682441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1442864901 - 230 = 369123077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1442864901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442864909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129210 + ... + 139931.

It is an arithmetic number, because the mean of its divisors is an integer number (240612948).

Almost surely, 21442864901 is an apocalyptic number.

It is an amenable number.

1442864901 is a deficient number, since it is larger than the sum of its proper divisors (482038683).

1442864901 is a wasteful number, since it uses less digits than its factorization.

1442864901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270931.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1442864901 is about 37985.0615505622. The cubic root of 1442864901 is about 1129.9916205294.

The spelling of 1442864901 in words is "one billion, four hundred forty-two million, eight hundred sixty-four thousand, nine hundred one".

Divisors: 1 3 1787 5361 269141 807423 480954967 1442864901