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49508698972 = 2216927731209
BaseRepresentation
bin101110000110111100…
…101100101101011100
311201210100100111022111
4232012330230231130
51302343211331342
634424411123404
73401604666145
oct560674545534
9151710314274
1049508698972
1119aa6408347
129718443564
134890042265
1425793a0acc
15144b699217
hexb86f2cb5c

49508698972 has 12 divisors (see below), whose sum is σ = 86645460160. Its totient is φ = 24752853216.

The previous prime is 49508698957. The next prime is 49508698973. The reversal of 49508698972 is 27989680594.

It is a super-2 number, since 2×495086989722 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49508698898 and 49508698907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49508698973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297897 + ... + 433312.

Almost surely, 249508698972 is an apocalyptic number.

It is an amenable number.

49508698972 is a deficient number, since it is larger than the sum of its proper divisors (37136761188).

49508698972 is a wasteful number, since it uses less digits than its factorization.

49508698972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748140 (or 748138 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 67.

The spelling of 49508698972 in words is "forty-nine billion, five hundred eight million, six hundred ninety-eight thousand, nine hundred seventy-two".

Divisors: 1 2 4 16927 33854 67708 731209 1462418 2924836 12377174743 24754349486 49508698972