Search a number
-
+
397880930248 = 231915117335349
BaseRepresentation
bin1011100101000111000…
…11010010111111001000
31102001000000011110202221
411302203203102333020
523004330004231443
6502441201103424
740513601051044
oct5624343227710
91361000143687
10397880930248
1114381645998a
1265141627b74
132b69b604609
1415386991024
15a53a865eed
hex5ca38d2fc8

397880930248 has 32 divisors (see below), whose sum is σ = 790491960000. Its totient is φ = 187221758400.

The previous prime is 397880930207. The next prime is 397880930287. The reversal of 397880930248 is 842039088793.

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, 8644723 + ... + 8690626.

It is an arithmetic number, because the mean of its divisors is an integer number (24702873750).

Almost surely, 2397880930248 is an apocalyptic number.

397880930248 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

397880930248 is a deficient number, since it is larger than the sum of its proper divisors (392611029752).

397880930248 is a wasteful number, since it uses less digits than its factorization.

397880930248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17335525 (or 17335521 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 397880930248 in words is "three hundred ninety-seven billion, eight hundred eighty million, nine hundred thirty thousand, two hundred forty-eight".

Divisors: 1 2 4 8 19 38 76 151 152 302 604 1208 2869 5738 11476 22952 17335349 34670698 69341396 138682792 329371631 658743262 1317486524 2617637699 2634973048 5235275398 10470550796 20941101592 49735116281 99470232562 198940465124 397880930248