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1401120210 = 2357223291429
BaseRepresentation
bin101001110000011…
…0110010111010010
310121122110021121010
41103200312113102
510332141321320
6351010511350
746502216400
oct12340662722
93548407533
101401120210
11659994396
12331295556
13194381619
14d4124470
1583016ae0
hex538365d2

1401120210 has 192 divisors, whose sum is σ = 4225478400. Its totient is φ = 295561728.

The previous prime is 1401120209. The next prime is 1401120223. The reversal of 1401120210 is 120211041.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 979776 + ... + 981204.

It is an arithmetic number, because the mean of its divisors is an integer number (22007700).

Almost surely, 21401120210 is an apocalyptic number.

1401120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401120210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2112739200).

1401120210 is an abundant number, since it is smaller than the sum of its proper divisors (2824358190).

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

1401120210 is a wasteful number, since it uses less digits than its factorization.

1401120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505 (or 1498 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1401120210 is about 37431.5403102784. The cubic root of 1401120210 is about 1118.9872355214.

Adding to 1401120210 its reverse (120211041), we get a palindrome (1521331251).

The spelling of 1401120210 in words is "one billion, four hundred one million, one hundred twenty thousand, two hundred ten".