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427690940 = 225731971487
BaseRepresentation
bin11001011111100…
…000101110111100
31002210202221200012
4121133200232330
51333442102230
6110234522352
713412212235
oct3137405674
91083687605
10427690940
111aa469596
12bb2963b8
136a7b8581
1440b3208c
1527833395
hex197e0bbc

427690940 has 48 divisors (see below), whose sum is σ = 915691392. Its totient is φ = 167763456.

The previous prime is 427690933. The next prime is 427690979. The reversal of 427690940 is 49096724.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286877 + ... + 288363.

It is an arithmetic number, because the mean of its divisors is an integer number (19076904).

Almost surely, 2427690940 is an apocalyptic number.

It is an amenable number.

427690940 is an abundant number, since it is smaller than the sum of its proper divisors (488000452).

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

427690940 is a wasteful number, since it uses less digits than its factorization.

427690940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766 (or 1764 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 427690940 is about 20680.6900271727. The cubic root of 427690940 is about 753.4307654978.

The spelling of 427690940 in words is "four hundred twenty-seven million, six hundred ninety thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 73 146 197 292 365 394 730 788 985 1460 1487 1970 2974 3940 5948 7435 14381 14870 28762 29740 57524 71905 108551 143810 217102 287620 292939 434204 542755 585878 1085510 1171756 1464695 2171020 2929390 5858780 21384547 42769094 85538188 106922735 213845470 427690940