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232401620 = 225111056371
BaseRepresentation
bin11011101101000…
…10101011010100
3121012022020002102
431312202223110
5433443322440
635021101232
75521244513
oct1566425324
9535266072
10232401620
1110a203860
12659b7818
13391c0469
1422c1867a
1515609b15
hexdda2ad4

232401620 has 24 divisors (see below), whose sum is σ = 532411488. Its totient is φ = 84509600.

The previous prime is 232401619. The next prime is 232401623. The reversal of 232401620 is 26104232.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 232401592 and 232401601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232401623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527966 + ... + 528405.

It is an arithmetic number, because the mean of its divisors is an integer number (22183812).

Almost surely, 2232401620 is an apocalyptic number.

232401620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232401620 is an abundant number, since it is smaller than the sum of its proper divisors (300009868).

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

232401620 is a wasteful number, since it uses less digits than its factorization.

232401620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056391 (or 1056389 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 232401620 is about 15244.7243333555. The cubic root of 232401620 is about 614.8177308140.

Adding to 232401620 its reverse (26104232), we get a palindrome (258505852).

The spelling of 232401620 in words is "two hundred thirty-two million, four hundred one thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1056371 2112742 4225484 5281855 10563710 11620081 21127420 23240162 46480324 58100405 116200810 232401620