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75114240 = 283531631
BaseRepresentation
bin1000111101000…
…10011100000000
312020100012100220
410132202130000
5123212123430
611241543040
71601313645
oct436423400
9166305326
1075114240
1139444493
12211a4a80
131273c5c6
149d93dcc
1568db110
hex47a2700

75114240 has 144 divisors (see below), whose sum is σ = 248027136. Its totient is φ = 19353600.

The previous prime is 75114233. The next prime is 75114283. The reversal of 75114240 is 4241157.

75114240 is nontrivially palindromic in base 11.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 75114240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118725 + ... + 119355.

Almost surely, 275114240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75114240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124013568).

75114240 is an abundant number, since it is smaller than the sum of its proper divisors (172912896).

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

75114240 is a wasteful number, since it uses less digits than its factorization.

75114240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 75114240 is about 8666.8471776073. The cubic root of 75114240 is about 421.9303434665.

Adding to 75114240 its reverse (4241157), we get a palindrome (79355397).

The spelling of 75114240 in words is "seventy-five million, one hundred fourteen thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 32 40 48 60 62 64 80 93 96 120 124 128 155 160 186 192 240 248 256 310 320 372 384 465 480 496 620 631 640 744 768 930 960 992 1240 1262 1280 1488 1860 1893 1920 1984 2480 2524 2976 3155 3720 3786 3840 3968 4960 5048 5952 6310 7440 7572 7936 9465 9920 10096 11904 12620 14880 15144 18930 19561 19840 20192 23808 25240 29760 30288 37860 39122 39680 40384 50480 58683 59520 60576 75720 78244 80768 97805 100960 117366 119040 121152 151440 156488 161536 195610 201920 234732 242304 293415 302880 312976 391220 403840 469464 484608 586830 605760 625952 782440 807680 938928 1173660 1211520 1251904 1564880 1877856 2347320 2423040 2503808 3129760 3755712 4694640 5007616 6259520 7511424 9389280 12519040 15022848 18778560 25038080 37557120 75114240