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74195940 = 2235713107127
BaseRepresentation
bin1000110110000…
…10001111100100
312011121112200210
410123002033210
5122443232230
611210135420
71560440460
oct433021744
9164545623
1074195940
1138977565
1220a21570
13124aa630
149bd54a0
1567a8eb0
hex46c23e4

74195940 has 192 divisors, whose sum is σ = 260112384. Its totient is φ = 15386112.

The previous prime is 74195917. The next prime is 74195951. The reversal of 74195940 is 4959147.

It is a hoax number, since the sum of its digits (39) 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 (39).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 584157 + ... + 584283.

It is an arithmetic number, because the mean of its divisors is an integer number (1354752).

Almost surely, 274195940 is an apocalyptic number.

74195940 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74195940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130056192).

74195940 is an abundant number, since it is smaller than the sum of its proper divisors (185916444).

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

74195940 is a wasteful number, since it uses less digits than its factorization.

74195940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 74195940 is about 8613.7065192634. The cubic root of 74195940 is about 420.2038692792.

The spelling of 74195940 in words is "seventy-four million, one hundred ninety-five thousand, nine hundred forty".