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387119871970 = 25132229065013
BaseRepresentation
bin1011010001000100010…
…01000111011111100010
31101000020001100001221221
411220202021013133202
522320310141400340
6453501310205254
736653122422226
oct5504211073742
91330201301857
10387119871970
1113a1a4091597
12630397b382a
132a67504a200
1414a4571c786
15a10ac7444a
hex5a222477e2

387119871970 has 24 divisors (see below), whose sum is σ = 754540156116. Its totient is φ = 142936567488.

The previous prime is 387119871967. The next prime is 387119872001. The reversal of 387119871970 is 79178911783.

It can be written as a sum of positive squares in 6 ways, for example, as 276922881 + 386842949089 = 16641^2 + 621967^2 .

It is a junction number, because it is equal to n+sod(n) for n = 387119871899 and 387119871908.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114530817 + ... + 114534196.

Almost surely, 2387119871970 is an apocalyptic number.

387119871970 is a deficient number, since it is larger than the sum of its proper divisors (367420284146).

387119871970 is a wasteful number, since it uses less digits than its factorization.

387119871970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229065046 (or 229065033 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 61.

The spelling of 387119871970 in words is "three hundred eighty-seven billion, one hundred nineteen million, eight hundred seventy-one thousand, nine hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 169 338 845 1690 229065013 458130026 1145325065 2290650130 2977845169 5955690338 14889225845 29778451690 38711987197 77423974394 193559935985 387119871970