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372404020 = 22518620201
BaseRepresentation
bin10110001100100…
…110111100110100
3221221202002021111
4112030212330310
51230313412040
6100541524404
712141245002
oct2614467464
9857662244
10372404020
1118123771a
12a4873704
135c1cb911
143765da72
1522a61dea
hex16326f34

372404020 has 12 divisors (see below), whose sum is σ = 782048484. Its totient is φ = 148961600.

The previous prime is 372403991. The next prime is 372404029. The reversal of 372404020 is 20404273.

It can be written as a sum of positive squares in 2 ways, for example, as 227346084 + 145057936 = 15078^2 + 12044^2 .

It is a super-2 number, since 2×3724040202 = 277369508224320800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 372403982 and 372404000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (372404029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9310081 + ... + 9310120.

It is an arithmetic number, because the mean of its divisors is an integer number (65170707).

Almost surely, 2372404020 is an apocalyptic number.

It is an amenable number.

372404020 is an abundant number, since it is smaller than the sum of its proper divisors (409644464).

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

372404020 is a wasteful number, since it uses less digits than its factorization.

372404020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18620210 (or 18620208 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 372404020 is about 19297.7724103068. The cubic root of 372404020 is about 719.4569078383.

Adding to 372404020 its reverse (20404273), we get a palindrome (392808293).

The spelling of 372404020 in words is "three hundred seventy-two million, four hundred four thousand, twenty".

Divisors: 1 2 4 5 10 20 18620201 37240402 74480804 93101005 186202010 372404020