Search a number
-
+
10212401420 = 2251339278467
BaseRepresentation
bin10011000001011010…
…01110000100001100
3222100201102202002122
421200231032010030
5131403333321140
64405211112112
7511033660034
oct114055160414
928321382078
1010212401420
1143706a8381
121b90142638
13c699c73a0
146cc4528c4
153eb866ab5
hex260b4e10c

10212401420 has 24 divisors (see below), whose sum is σ = 23095739184. Its totient is φ = 3770732736.

The previous prime is 10212401389. The next prime is 10212401429. The reversal of 10212401420 is 2410421201.

It is not an unprimeable number, because it can be changed into a prime (10212401429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19638974 + ... + 19639493.

It is an arithmetic number, because the mean of its divisors is an integer number (962322466).

Almost surely, 210212401420 is an apocalyptic number.

10212401420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212401420 is an abundant number, since it is smaller than the sum of its proper divisors (12883337764).

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

10212401420 is a wasteful number, since it uses less digits than its factorization.

10212401420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39278489 (or 39278487 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10212401420 its reverse (2410421201), we get a palindrome (12622822621).

The spelling of 10212401420 in words is "ten billion, two hundred twelve million, four hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 39278467 78556934 157113868 196392335 392784670 510620071 785569340 1021240142 2042480284 2553100355 5106200710 10212401420