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387668067400 = 23522699371809
BaseRepresentation
bin1011010010000101101…
…00010100010001001000
31101001122020212021201101
411221002310110101020
522322421011124100
6454031532031144
740002530126515
oct5510264242110
91331566767641
10387668067400
1113a455576969
12631713024b4
132a7317a81c3
1414a9845c30c
15a13de5c86a
hex5a42d14448

387668067400 has 48 divisors (see below), whose sum is σ = 901374200100. Its totient is φ = 155059322880.

The previous prime is 387668067373. The next prime is 387668067401. The reversal of 387668067400 is 4760866783.

It can be written as a sum of positive squares in 6 ways, for example, as 7943443876 + 379724623524 = 89126^2 + 616218^2 .

It is not an unprimeable number, because it can be changed into a prime (387668067401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5362696 + ... + 5434504.

Almost surely, 2387668067400 is an apocalyptic number.

It is an amenable number.

387668067400 is an abundant number, since it is smaller than the sum of its proper divisors (513706132700).

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

387668067400 is a wasteful number, since it uses less digits than its factorization.

387668067400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98818 (or 98809 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 387668067400 in words is "three hundred eighty-seven billion, six hundred sixty-eight million, sixty-seven thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 26993 53986 71809 107972 134965 143618 215944 269930 287236 359045 539860 574472 674825 718090 1079720 1349650 1436180 1795225 2699300 2872360 3590450 5398600 7180900 14361800 1938340337 3876680674 7753361348 9691701685 15506722696 19383403370 38766806740 48458508425 77533613480 96917016850 193834033700 387668067400