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74040067040 = 2552915956911
BaseRepresentation
bin100010011110100100…
…0011100001111100000
321002002222110002222012
41010331020130033200
52203113224121130
654002531332052
75230532120522
oct1047510341740
9232088402865
1074040067040
1129444762255
1212423a51028
136c9c457274
1438253d9a12
151dd514c995
hex113d21c3e0

74040067040 has 48 divisors (see below), whose sum is σ = 180951382080. Its totient is φ = 28594782720.

The previous prime is 74040067033. The next prime is 74040067061. The reversal of 74040067040 is 4076004047.

It is a super-3 number, since 3×740400670403 (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 74040066988 and 74040067006.

It is a congruent number.

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, 7973816 + ... + 7983095.

It is an arithmetic number, because the mean of its divisors is an integer number (3769820460).

Almost surely, 274040067040 is an apocalyptic number.

It is an amenable number.

74040067040 is an abundant number, since it is smaller than the sum of its proper divisors (106911315040).

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

74040067040 is a wasteful number, since it uses less digits than its factorization.

74040067040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15956955 (or 15956947 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The spelling of 74040067040 in words is "seventy-four billion, forty million, sixty-seven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 29 32 40 58 80 116 145 160 232 290 464 580 928 1160 2320 4640 15956911 31913822 63827644 79784555 127655288 159569110 255310576 319138220 462750419 510621152 638276440 925500838 1276552880 1851001676 2313752095 2553105760 3702003352 4627504190 7404006704 9255008380 14808013408 18510016760 37020033520 74040067040