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420104344 = 23114773913
BaseRepresentation
bin11001000010100…
…100100010011000
31002021111111211011
4121002210202120
51330021314334
6105404143304
713260554002
oct3102444230
91067444734
10420104344
111a6157680
12b8837b34
136906036a
143db19372
1526d35564
hex190a4898

420104344 has 16 divisors (see below), whose sum is σ = 859304520. Its totient is φ = 190956480.

The previous prime is 420104329. The next prime is 420104351. The reversal of 420104344 is 443401024.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2386869 + ... + 2387044.

Almost surely, 2420104344 is an apocalyptic number.

420104344 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420104344 is an abundant number, since it is smaller than the sum of its proper divisors (439200176).

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

420104344 is a wasteful number, since it uses less digits than its factorization.

420104344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773930 (or 4773926 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 420104344 is about 20496.4471067549. The cubic root of 420104344 is about 748.9492509598.

Adding to 420104344 its reverse (443401024), we get a palindrome (863505368).

The spelling of 420104344 in words is "four hundred twenty million, one hundred four thousand, three hundred forty-four".

Divisors: 1 2 4 8 11 22 44 88 4773913 9547826 19095652 38191304 52513043 105026086 210052172 420104344