Search a number
-
+
120130020100 = 22523751896257
BaseRepresentation
bin110111111100001001…
…1101010001100000100
3102111002001211022112201
41233320103222030010
53432011241120400
6131104215124244
711451635215516
oct1577023521404
9374061738481
10120130020100
1146a462a0152
121b347373684
13b43610c03c
145b5870dbb6
1531d15da06a
hex1bf84ea304

120130020100 has 72 divisors (see below), whose sum is σ = 267821998920. Its totient is φ = 46736824320.

The previous prime is 120130020089. The next prime is 120130020113. The reversal of 120130020100 is 1020031021.

It can be written as a sum of positive squares in 12 ways, for example, as 4263306436 + 115866713664 = 65294^2 + 340392^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19196172 + ... + 19202428.

It is an arithmetic number, because the mean of its divisors is an integer number (3719749985).

Almost surely, 2120130020100 is an apocalyptic number.

120130020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120130020100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133910999460).

120130020100 is an abundant number, since it is smaller than the sum of its proper divisors (147691978820).

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

120130020100 is a wasteful number, since it uses less digits than its factorization.

120130020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11497 (or 11490 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 120130020100 its reverse (1020031021), we get a palindrome (121150051121).

The spelling of 120130020100 in words is "one hundred twenty billion, one hundred thirty million, twenty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 37 50 74 100 148 185 370 740 925 1850 3700 5189 6257 10378 12514 20756 25028 25945 31285 51890 62570 103780 125140 129725 156425 191993 231509 259450 312850 383986 463018 518900 625700 767972 926036 959965 1157545 1919930 2315090 3839860 4630180 4799825 5787725 9599650 11575450 19199300 23150900 32467573 64935146 129870292 162337865 324675730 649351460 811689325 1201300201 1623378650 2402600402 3246757300 4805200804 6006501005 12013002010 24026004020 30032505025 60065010050 120130020100