Search a number
-
+
10031113120020 = 2235891878485603
BaseRepresentation
bin1001000111111000110011…
…1011110010100100010100
31022111222001112001111210220
42101332030323302210110
52303322204424320040
633200121343114340
72053503222452106
oct221761473624424
938458045044726
1010031113120020
113218197933653
12116011b5a29b0
13579c12016005
1426971932d576
15125deb6452d0
hex91f8cef2914

10031113120020 has 48 divisors (see below), whose sum is σ = 28402702332480. Its totient is φ = 2644907727616.

The previous prime is 10031113120013. The next prime is 10031113120027. The reversal of 10031113120020 is 2002131113001.

It is a happy number.

10031113120020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10031113120013) and next prime (10031113120027).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031113120027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939237462 + ... + 939248141.

It is an arithmetic number, because the mean of its divisors is an integer number (591722965260).

Almost surely, 210031113120020 is an apocalyptic number.

10031113120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10031113120020 is an abundant number, since it is smaller than the sum of its proper divisors (18371589212460).

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

10031113120020 is a wasteful number, since it uses less digits than its factorization.

10031113120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878485704 (or 1878485702 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10031113120020 its reverse (2002131113001), we get a palindrome (12033244233021).

The spelling of 10031113120020 in words is "ten trillion, thirty-one billion, one hundred thirteen million, one hundred twenty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 89 178 267 356 445 534 890 1068 1335 1780 2670 5340 1878485603 3756971206 5635456809 7513942412 9392428015 11270913618 18784856030 22541827236 28177284045 37569712060 56354568090 112709136180 167185218667 334370437334 501555656001 668740874668 835926093335 1003111312002 1671852186670 2006222624004 2507778280005 3343704373340 5015556560010 10031113120020