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1401001022 = 21823384257
BaseRepresentation
bin101001110000001…
…1001010000111110
310121122020020002202
41103200121100332
510332124013042
6351004151502
746501212041
oct12340312076
93548206082
101401001022
11659912893
12331238592
1319433c2b5
14d40d2c58
1582ee1632
hex5381943e

1401001022 has 8 divisors (see below), whose sum is σ = 2102659776. Its totient is φ = 700114432.

The previous prime is 1401001003. The next prime is 1401001027. The reversal of 1401001022 is 2201001041.

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

It is a junction number, because it is equal to n+sod(n) for n = 1401000994 and 1401001012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401001027) 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, 188483 + ... + 195774.

It is an arithmetic number, because the mean of its divisors is an integer number (262832472).

Almost surely, 21401001022 is an apocalyptic number.

1401001022 is a deficient number, since it is larger than the sum of its proper divisors (701658754).

1401001022 is a wasteful number, since it uses less digits than its factorization.

1401001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386082.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1401001022 is about 37429.9481965979. The cubic root of 1401001022 is about 1118.9555052835.

Adding to 1401001022 its reverse (2201001041), we get a palindrome (3602002063).

The spelling of 1401001022 in words is "one billion, four hundred one million, one thousand, twenty-two".

Divisors: 1 2 1823 3646 384257 768514 700500511 1401001022