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1401042210 = 235311506497
BaseRepresentation
bin101001110000010…
…0011010100100010
310121122022022121020
41103200203110202
510332131322320
6351005110310
746501443111
oct12340432442
93548268536
101401042210
11659940827
12331258396
13194354c79
14d4103c78
1582eed940
hex53823522

1401042210 has 32 divisors (see below), whose sum is σ = 3470971392. Its totient is φ = 361559040.

The previous prime is 1401042193. The next prime is 1401042221. The reversal of 1401042210 is 122401041.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1401042210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 752319 + ... + 754178.

It is an arithmetic number, because the mean of its divisors is an integer number (108467856).

Almost surely, 21401042210 is an apocalyptic number.

1401042210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1401042210 is an abundant number, since it is smaller than the sum of its proper divisors (2069929182).

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

1401042210 is a wasteful number, since it uses less digits than its factorization.

1401042210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506538.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1401042210 is about 37430.4983936896. The cubic root of 1401042210 is about 1118.9664705593.

Adding to 1401042210 its reverse (122401041), we get a palindrome (1523443251).

The spelling of 1401042210 in words is "one billion, four hundred one million, forty-two thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 1506497 3012994 4519491 7532485 9038982 15064970 22597455 45194910 46701407 93402814 140104221 233507035 280208442 467014070 700521105 1401042210