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152561412220 = 22571089724373
BaseRepresentation
bin1000111000010101011…
…1100110100001111100
3112120210021012201212211
42032011113212201330
54444421210142340
6154030304310204
714010420415240
oct2160527464174
9476707181784
10152561412220
1159778a38058
1225698612364
13115041315a9
147553a2a420
153e7d8db5ea
hex23855e687c

152561412220 has 24 divisors (see below), whose sum is σ = 366147389664. Its totient is φ = 52306769856.

The previous prime is 152561412203. The next prime is 152561412229. The reversal of 152561412220 is 22214165251.

152561412220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152561412229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544862047 + ... + 544862326.

It is an arithmetic number, because the mean of its divisors is an integer number (15256141236).

Almost surely, 2152561412220 is an apocalyptic number.

152561412220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152561412220 is an abundant number, since it is smaller than the sum of its proper divisors (213585977444).

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

152561412220 is a wasteful number, since it uses less digits than its factorization.

152561412220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089724389 (or 1089724387 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 152561412220 its reverse (22214165251), we get a palindrome (174775577471).

The spelling of 152561412220 in words is "one hundred fifty-two billion, five hundred sixty-one million, four hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1089724373 2179448746 4358897492 5448621865 7628070611 10897243730 15256141222 21794487460 30512282444 38140353055 76280706110 152561412220