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122342430 = 23573118793
BaseRepresentation
bin1110100101011…
…00110000011110
322112012122021010
413102230300132
5222304424210
620050120050
73013615320
oct722546036
9275178233
10122342430
1163071751
1234b80026
131c467192
1412369610
15ab19920
hex74acc1e

122342430 has 64 divisors (see below), whose sum is σ = 346411008. Its totient is φ = 27060480.

The previous prime is 122342417. The next prime is 122342431. The reversal of 122342430 is 34243221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 122342397 and 122342406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122342431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2887 + ... + 15906.

It is an arithmetic number, because the mean of its divisors is an integer number (5412672).

Almost surely, 2122342430 is an apocalyptic number.

122342430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122342430 is an abundant number, since it is smaller than the sum of its proper divisors (224068578).

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

122342430 is a wasteful number, since it uses less digits than its factorization.

122342430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18841.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 122342430 is about 11060.8512330652. The cubic root of 122342430 is about 496.4311607122.

Adding to 122342430 its reverse (34243221), we get a palindrome (156585651).

The spelling of 122342430 in words is "one hundred twenty-two million, three hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 31 35 42 62 70 93 105 155 186 210 217 310 434 465 651 930 1085 1302 2170 3255 6510 18793 37586 56379 93965 112758 131551 187930 263102 281895 394653 563790 582583 657755 789306 1165166 1315510 1747749 1973265 2912915 3495498 3946530 4078081 5825830 8156162 8738745 12234243 17477490 20390405 24468486 40780810 61171215 122342430