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74940271 = 743248971
BaseRepresentation
bin1000111011101…
…11111101101111
312020000100201121
410131313331233
5123141042041
611234121411
71566660520
oct435677557
9166010647
1074940271
113933580a
1221120267
13126ab373
149d4a847
1568a47d1
hex4777f6f

74940271 has 8 divisors (see below), whose sum is σ = 87638144. Its totient is φ = 62740440.

The previous prime is 74940241. The next prime is 74940277. The reversal of 74940271 is 17204947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74940271 - 27 = 74940143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74940277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124185 + ... + 124786.

It is an arithmetic number, because the mean of its divisors is an integer number (10954768).

Almost surely, 274940271 is an apocalyptic number.

74940271 is a deficient number, since it is larger than the sum of its proper divisors (12697873).

74940271 is a wasteful number, since it uses less digits than its factorization.

74940271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249021.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 74940271 is about 8656.8048955720. The cubic root of 74940271 is about 421.6043531645.

The spelling of 74940271 in words is "seventy-four million, nine hundred forty thousand, two hundred seventy-one".

Divisors: 1 7 43 301 248971 1742797 10705753 74940271