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49000072560 = 2435832459843
BaseRepresentation
bin101101101000101000…
…011100010101110000
311200110220021121001020
4231220220130111300
51300323004310220
634302121335440
73353160513255
oct555050342560
9150426247036
1049000072560
111986529983a
1295b6037580
13480b85989a
14252ba0142c
15141bbca040
hexb68a1c570

49000072560 has 80 divisors (see below), whose sum is σ = 153730410624. Its totient is φ = 12909250816.

The previous prime is 49000072559. The next prime is 49000072567. The reversal of 49000072560 is 6527000094.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×490000725602 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49000072567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1210002 + ... + 1249841.

Almost surely, 249000072560 is an apocalyptic number.

49000072560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49000072560 is an abundant number, since it is smaller than the sum of its proper divisors (104730338064).

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

49000072560 is a wasteful number, since it uses less digits than its factorization.

49000072560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459942 (or 2459936 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 49000072560 in words is "forty-nine billion, seventy-two thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 83 120 166 240 249 332 415 498 664 830 996 1245 1328 1660 1992 2490 3320 3984 4980 6640 9960 19920 2459843 4919686 7379529 9839372 12299215 14759058 19678744 24598430 29518116 36897645 39357488 49196860 59036232 73795290 98393720 118072464 147590580 196787440 204166969 295181160 408333938 590362320 612500907 816667876 1020834845 1225001814 1633335752 2041669690 2450003628 3062504535 3266671504 4083339380 4900007256 6125009070 8166678760 9800014512 12250018140 16333357520 24500036280 49000072560