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31424328000 = 2633531319231
BaseRepresentation
bin11101010001000010…
…010011000101000000
310000010000102021002000
4131101002103011000
51003324111444000
622234112224000
72161503244422
oct352102230500
9100100367060
1031424328000
111236623980a
12610bb3b000
132c6a4b0c30
141741690812
15c3dbc7000
hex751093140

31424328000 has 1344 divisors, whose sum is σ = 135266826240. Its totient is φ = 7091712000.

The previous prime is 31424327971. The next prime is 31424328029. The reversal of 31424328000 is 82342413.

31424328000 is a `hidden beast` number, since 314 + 24 + 328 + 0 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (31424327971) and next prime (31424328029).

It is a super-3 number, since 3×314243280003 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1013687985 + ... + 1013688015.

It is an arithmetic number, because the mean of its divisors is an integer number (100644960).

Almost surely, 231424328000 is an apocalyptic number.

31424328000 is a gapful number since it is divisible by the number (30) 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 31424328000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67633413120).

31424328000 is an abundant number, since it is smaller than the sum of its proper divisors (103842498240).

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

31424328000 is a wasteful number, since it uses less digits than its factorization.

31424328000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

It can be divided in two parts, 314243 and 28000, that added together give a palindrome (342243).

The spelling of 31424328000 in words is "thirty-one billion, four hundred twenty-four million, three hundred twenty-eight thousand".