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74280101 = 719558497
BaseRepresentation
bin1000110110101…
…10110010100101
312011202211010212
410123112302211
5123003430401
611212025205
71561241030
oct433266245
9164684125
1074280101
1138a24815
1220a62205
1312509a2c
149c18017
1567c3dbb
hex46d6ca5

74280101 has 8 divisors (see below), whose sum is σ = 89359680. Its totient is φ = 60317568.

The previous prime is 74280079. The next prime is 74280109. The reversal of 74280101 is 10108247.

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

It is a cyclic number.

It is not a de Polignac number, because 74280101 - 222 = 70085797 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 (74280109) 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, 279116 + ... + 279381.

It is an arithmetic number, because the mean of its divisors is an integer number (11169960).

Almost surely, 274280101 is an apocalyptic number.

It is an amenable number.

74280101 is a deficient number, since it is larger than the sum of its proper divisors (15079579).

74280101 is a wasteful number, since it uses less digits than its factorization.

74280101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558523.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 74280101 is about 8618.5904299949. The cubic root of 74280101 is about 420.3626893564.

Adding to 74280101 its reverse (10108247), we get a palindrome (84388348).

The spelling of 74280101 in words is "seventy-four million, two hundred eighty thousand, one hundred one".

Divisors: 1 7 19 133 558497 3909479 10611443 74280101