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75994490 = 251113192797
BaseRepresentation
bin1001000011110…
…01010101111010
312021222220211202
410201321111322
5123423310430
611312454202
71611641165
oct441712572
9167886752
1075994490
1139995870
122154a362
131298a170
14a142adc
156a11d45
hex487957a

75994490 has 64 divisors (see below), whose sum is σ = 169223040. Its totient is φ = 24157440.

The previous prime is 75994489. The next prime is 75994493. The reversal of 75994490 is 9449957.

It is not an unprimeable number, because it can be changed into a prime (75994493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25772 + ... + 28568.

It is an arithmetic number, because the mean of its divisors is an integer number (2644110).

Almost surely, 275994490 is an apocalyptic number.

75994490 is an abundant number, since it is smaller than the sum of its proper divisors (93228550).

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

75994490 is a wasteful number, since it uses less digits than its factorization.

75994490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 75994490 is about 8717.4818611799. The cubic root of 75994490 is about 423.5721216044.

The spelling of 75994490 in words is "seventy-five million, nine hundred ninety-four thousand, four hundred ninety".

Divisors: 1 2 5 10 11 13 19 22 26 38 55 65 95 110 130 143 190 209 247 286 418 494 715 1045 1235 1430 2090 2470 2717 2797 5434 5594 13585 13985 27170 27970 30767 36361 53143 61534 72722 106286 153835 181805 265715 307670 363610 399971 531430 584573 690859 799942 1169146 1381718 1999855 2922865 3454295 3999710 5845730 6908590 7599449 15198898 37997245 75994490