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2126570740 = 225715189791
BaseRepresentation
bin111111011000000…
…1110010011110100
312111012111222122021
41332300032103310
513323400230430
6551003442524
7103461360460
oct17660162364
95435458567
102126570740
119a1437088
124b4226444
1327b761ca8
141626054a0
15c6a6507a
hex7ec0e4f4

2126570740 has 24 divisors (see below), whose sum is σ = 5103770112. Its totient is φ = 729109920.

The previous prime is 2126570737. The next prime is 2126570773. The reversal of 2126570740 is 470756212.

It is a super-2 number, since 2×21265707402 = 9044606224448295200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2126570696 and 2126570705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7594756 + ... + 7595035.

It is an arithmetic number, because the mean of its divisors is an integer number (212657088).

Almost surely, 22126570740 is an apocalyptic number.

2126570740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2126570740 is an abundant number, since it is smaller than the sum of its proper divisors (2977199372).

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

2126570740 is a wasteful number, since it uses less digits than its factorization.

2126570740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15189807 (or 15189805 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 2126570740 is about 46114.7562066634. The cubic root of 2126570740 is about 1285.9574871039.

The spelling of 2126570740 in words is "two billion, one hundred twenty-six million, five hundred seventy thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 15189791 30379582 60759164 75948955 106328537 151897910 212657074 303795820 425314148 531642685 1063285370 2126570740