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303970040 = 23511690841
BaseRepresentation
bin10010000111100…
…011011011111000
3210011222021111122
4102013203123320
51110304020130
650055044412
710350463013
oct2207433370
9704867448
10303970040
11146646210
1285970708
134ac8ab3a
142c52837a
151ba452e5
hex121e36f8

303970040 has 32 divisors (see below), whose sum is σ = 746109360. Its totient is φ = 110534400.

The previous prime is 303970033. The next prime is 303970057. The reversal of 303970040 is 40079303.

It is a junction number, because it is equal to n+sod(n) for n = 303969991 and 303970009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344981 + ... + 345860.

Almost surely, 2303970040 is an apocalyptic number.

It is an amenable number.

303970040 is an abundant number, since it is smaller than the sum of its proper divisors (442139320).

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

303970040 is a wasteful number, since it uses less digits than its factorization.

303970040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690863 (or 690859 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 303970040 is about 17434.7365910701. The cubic root of 303970040 is about 672.3729918659.

The spelling of 303970040 in words is "three hundred three million, nine hundred seventy thousand, forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 690841 1381682 2763364 3454205 5526728 6908410 7599251 13816820 15198502 27633640 30397004 37996255 60794008 75992510 151985020 303970040