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74385212000 = 2553111690573
BaseRepresentation
bin100010101000110110…
…1000100001001100000
321010000000220021211212
41011101231010021200
52204320103241000
654101101125252
75242222604201
oct1052155041140
9233000807755
1074385212000
1129601570820
12124bb559828
137025b00658
1438591a15a8
151e055c7c35
hex1151b44260

74385212000 has 96 divisors (see below), whose sum is σ = 199379535264. Its totient is φ = 27049152000.

The previous prime is 74385211997. The next prime is 74385212003. The reversal of 74385212000 is 21258347.

It is an interprime number because it is at equal distance from previous prime (74385211997) and next prime (74385212003).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74385212003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 801287 + ... + 889286.

It is an arithmetic number, because the mean of its divisors is an integer number (2076870159).

Almost surely, 274385212000 is an apocalyptic number.

It is an amenable number.

74385212000 is an abundant number, since it is smaller than the sum of its proper divisors (124994323264).

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

74385212000 is a wasteful number, since it uses less digits than its factorization.

74385212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690609 (or 1690591 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 74385212000 in words is "seventy-four billion, three hundred eighty-five million, two hundred twelve thousand".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 80 88 100 110 125 160 176 200 220 250 275 352 400 440 500 550 800 880 1000 1100 1375 1760 2000 2200 2750 4000 4400 5500 8800 11000 22000 44000 1690573 3381146 6762292 8452865 13524584 16905730 18596303 27049168 33811460 37192606 42264325 54098336 67622920 74385212 84528650 92981515 135245840 148770424 169057300 185963030 211321625 270491680 297540848 338114600 371926060 422643250 464907575 595081696 676229200 743852120 845286500 929815150 1352458400 1487704240 1690573000 1859630300 2324537875 2975408480 3381146000 3719260600 4649075750 6762292000 7438521200 9298151500 14877042400 18596303000 37192606000 74385212000