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3100837428 = 22321311036007
BaseRepresentation
bin1011100011010011…
…0000011000110100
322000002202212021200
42320310300120310
522322303244203
61231405412500
7136561453233
oct27064603064
98002685250
103100837428
111351384067
1272656a130
133a555c260
14215b74b1a
151323619a3
hexb8d30634

3100837428 has 72 divisors (see below), whose sum is σ = 8450227968. Its totient is φ = 953080128.

The previous prime is 3100837427. The next prime is 3100837501. The reversal of 3100837428 is 8247380013.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3100837392 and 3100837401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3100837427) 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, 513201 + ... + 519207.

Almost surely, 23100837428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3100837428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4225113984).

3100837428 is an abundant number, since it is smaller than the sum of its proper divisors (5349390540).

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

3100837428 is a wasteful number, since it uses less digits than its factorization.

3100837428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7133 (or 7128 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 3100837428 is about 55685.1634459306. The cubic root of 3100837428 is about 1458.2310200860.

The spelling of 3100837428 in words is "three billion, one hundred million, eight hundred thirty-seven thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 1103 2206 3309 4412 6007 6618 9927 12014 13236 14339 18021 19854 24028 28678 36042 39708 43017 54063 57356 72084 78091 86034 108126 129051 156182 172068 216252 234273 258102 312364 468546 516204 702819 937092 1405638 2811276 6625721 13251442 19877163 26502884 39754326 59631489 79508652 86134373 119262978 172268746 238525956 258403119 344537492 516806238 775209357 1033612476 1550418714 3100837428