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1020838701 = 3340279567
BaseRepresentation
bin111100110110001…
…100001100101101
32122010212222102210
4330312030030231
54042313314301
6245144041033
734203662061
oct7466141455
92563788383
101020838701
11484267253
12245a63179
1313365528c
1499813aa1
155e94aad6
hex3cd8c32d

1020838701 has 4 divisors (see below), whose sum is σ = 1361118272. Its totient is φ = 680559132.

The previous prime is 1020838697. The next prime is 1020838717. The reversal of 1020838701 is 1078380201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1078380201 = 3359460067.

It is not a de Polignac number, because 1020838701 - 22 = 1020838697 is a prime.

It is a super-2 number, since 2×10208387012 = 2084223306918734802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020838751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170139781 + ... + 170139786.

It is an arithmetic number, because the mean of its divisors is an integer number (340279568).

Almost surely, 21020838701 is an apocalyptic number.

It is an amenable number.

1020838701 is a deficient number, since it is larger than the sum of its proper divisors (340279571).

1020838701 is an equidigital number, since it uses as much as digits as its factorization.

1020838701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340279570.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1020838701 is about 31950.5665207990. The cubic root of 1020838701 is about 1006.8985344558.

The spelling of 1020838701 in words is "one billion, twenty million, eight hundred thirty-eight thousand, seven hundred one".

Divisors: 1 3 340279567 1020838701