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310001131200 = 26352411575209
BaseRepresentation
bin1001000001011011000…
…00011101111011000000
31002122011111211010120210
410200231200131323000
520034340242144300
6354225040034120
731253055065265
oct4405540357300
91078144733523
10310001131200
1110a51a614192
12500b6902940
1323304b23c17
141100b4bb26c
1580e56e2050
hex482d81dec0

310001131200 has 168 divisors, whose sum is σ = 1041869097360. Its totient is φ = 80650649600.

The previous prime is 310001131183. The next prime is 310001131207. The reversal of 310001131200 is 2131100013.

It is a super-2 number, since 2×3100011312002 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (310001131207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 590805 + ... + 984404.

It is an arithmetic number, because the mean of its divisors is an integer number (6201601770).

Almost surely, 2310001131200 is an apocalyptic number.

310001131200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

310001131200 is an abundant number, since it is smaller than the sum of its proper divisors (731867966160).

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

310001131200 is a wasteful number, since it uses less digits than its factorization.

310001131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575275 (or 1575260 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 310001131200 its reverse (2131100013), we get a palindrome (312132231213).

The spelling of 310001131200 in words is "three hundred ten billion, one million, one hundred thirty-one thousand, two hundred".