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122383380 = 22357241627
BaseRepresentation
bin1110100101101…
…10110000010100
322112021201102210
413102312300110
5222312232010
620051033420
73014145600
oct722666024
9275251383
10122383380
116309a499
1234b9b870
131c47ca02
141237a500
15ab26b20
hex74b6c14

122383380 has 72 divisors (see below), whose sum is σ = 398629728. Its totient is φ = 27972672.

The previous prime is 122383379. The next prime is 122383399. The reversal of 122383380 is 83383221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17874 + ... + 23753.

It is an arithmetic number, because the mean of its divisors is an integer number (5536524).

Almost surely, 2122383380 is an apocalyptic number.

122383380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122383380 is an abundant number, since it is smaller than the sum of its proper divisors (276246348).

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

122383380 is a wasteful number, since it uses less digits than its factorization.

122383380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41653 (or 41644 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 122383380 is about 11062.7022015419. The cubic root of 122383380 is about 496.4865423933.

The spelling of 122383380 in words is "one hundred twenty-two million, three hundred eighty-three thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 420 490 588 735 980 1470 2940 41627 83254 124881 166508 208135 249762 291389 416270 499524 582778 624405 832540 874167 1165556 1248810 1456945 1748334 2039723 2497620 2913890 3496668 4079446 4370835 5827780 6119169 8158892 8741670 10198615 12238338 17483340 20397230 24476676 30595845 40794460 61191690 122383380