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115194940 = 2257822821
BaseRepresentation
bin1101101110110…
…11110000111100
322000202111202021
412313123300330
5213442214230
615233005524
72566066210
oct667336074
9260674667
10115194940
115a02a733
12326b38a4
131ab33ab3
1411428940
15a1a6c7a
hex6ddbc3c

115194940 has 24 divisors (see below), whose sum is σ = 276468192. Its totient is φ = 39495360.

The previous prime is 115194923. The next prime is 115194973. The reversal of 115194940 is 49491511.

It is a junction number, because it is equal to n+sod(n) for n = 115194896 and 115194905.

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, 411271 + ... + 411550.

It is an arithmetic number, because the mean of its divisors is an integer number (11519508).

Almost surely, 2115194940 is an apocalyptic number.

115194940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115194940 is an abundant number, since it is smaller than the sum of its proper divisors (161273252).

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

115194940 is a wasteful number, since it uses less digits than its factorization.

115194940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822837 (or 822835 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 115194940 is about 10732.8905705779. The cubic root of 115194940 is about 486.5690354809.

The spelling of 115194940 in words is "one hundred fifteen million, one hundred ninety-four thousand, nine hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 822821 1645642 3291284 4114105 5759747 8228210 11519494 16456420 23038988 28798735 57597470 115194940