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387690714660 = 223521059306829
BaseRepresentation
bin1011010010001000010…
…10101101011000100100
31101001200211110212220210
411221010022231120210
522322442310332120
6454034101255420
740003223462514
oct5510412553044
91331624425823
10387690714660
1113a467335107
1263178a04570
132a7363a7552
1414a9b475844
15a140e32ce0
hex5a442ad624

387690714660 has 48 divisors (see below), whose sum is σ = 1085589086400. Its totient is φ = 103378944384.

The previous prime is 387690714583. The next prime is 387690714673. The reversal of 387690714660 is 66417096783.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 387690714660.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110126 + ... + 1416954.

It is an arithmetic number, because the mean of its divisors is an integer number (22616439300).

Almost surely, 2387690714660 is an apocalyptic number.

387690714660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

387690714660 is an abundant number, since it is smaller than the sum of its proper divisors (697898371740).

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

387690714660 is a wasteful number, since it uses less digits than its factorization.

387690714660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327900 (or 327898 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 57.

The spelling of 387690714660 in words is "three hundred eighty-seven billion, six hundred ninety million, seven hundred fourteen thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 21059 42118 63177 84236 105295 126354 210590 252708 306829 315885 421180 613658 631770 920487 1227316 1263540 1534145 1840974 3068290 3681948 4602435 6136580 9204870 18409740 6461511911 12923023822 19384535733 25846047644 32307559555 38769071466 64615119110 77538142932 96922678665 129230238220 193845357330 387690714660