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74142941 = 354720903
BaseRepresentation
bin1000110101101…
…01010011011101
312011111211222212
410122311103131
5122440033231
611205050205
71560130115
oct432652335
9164454885
1074142941
1138940764
12209b6965
131248c482
149bc0045
15679842b
hex46b54dd

74142941 has 4 divisors (see below), whose sum is σ = 74167392. Its totient is φ = 74118492.

The previous prime is 74142911. The next prime is 74142947. The reversal of 74142941 is 14924147.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74142941 - 210 = 74141917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74142898 and 74142907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74142947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6905 + ... + 13998.

It is an arithmetic number, because the mean of its divisors is an integer number (18541848).

Almost surely, 274142941 is an apocalyptic number.

It is an amenable number.

74142941 is a deficient number, since it is larger than the sum of its proper divisors (24451).

74142941 is a wasteful number, since it uses less digits than its factorization.

74142941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24450.

The product of its digits is 8064, while the sum is 32.

The square root of 74142941 is about 8610.6295356379. The cubic root of 74142941 is about 420.1037933198.

The spelling of 74142941 in words is "seventy-four million, one hundred forty-two thousand, nine hundred forty-one".

Divisors: 1 3547 20903 74142941