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1020401042 = 21926852659
BaseRepresentation
bin111100110100100…
…001010110010010
32122010001202002012
4330310201112102
54042210313132
6245130422522
734200160103
oct7464412622
92563052065
101020401042
11483a98451
12245891a42
13133530ccb
149973c3aa
155e8b10b2
hex3cd21592

1020401042 has 8 divisors (see below), whose sum is σ = 1611159600. Its totient is φ = 483347844.

The previous prime is 1020401017. The next prime is 1020401077. The reversal of 1020401042 is 2401040201.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13426292 + ... + 13426367.

It is an arithmetic number, because the mean of its divisors is an integer number (201394950).

Almost surely, 21020401042 is an apocalyptic number.

1020401042 is a deficient number, since it is larger than the sum of its proper divisors (590758558).

1020401042 is a wasteful number, since it uses less digits than its factorization.

1020401042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26852680.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1020401042 is about 31943.7167843693. The cubic root of 1020401042 is about 1006.7546197195.

Adding to 1020401042 its reverse (2401040201), we get a palindrome (3421441243).

The spelling of 1020401042 in words is "one billion, twenty million, four hundred one thousand, forty-two".

Divisors: 1 2 19 38 26852659 53705318 510200521 1020401042