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73745141 = 148349727
BaseRepresentation
bin1000110010101…
…00001011110101
312010202122022112
410121110023311
5122334321031
611152340405
71553552261
oct431241365
9163678275
1073745141
11386998a8
1220844705
13123803a2
149b190a1
15671a62b
hex46542f5

73745141 has 4 divisors (see below), whose sum is σ = 73796352. Its totient is φ = 73693932.

The previous prime is 73745093. The next prime is 73745143. The reversal of 73745141 is 14154737.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14154737 = 83170539.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-73745141 is a prime.

It is a super-2 number, since 2×737451412 = 10876691642219762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73745098 and 73745107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73745143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23381 + ... + 26346.

It is an arithmetic number, because the mean of its divisors is an integer number (18449088).

Almost surely, 273745141 is an apocalyptic number.

It is an amenable number.

73745141 is a deficient number, since it is larger than the sum of its proper divisors (51211).

73745141 is a wasteful number, since it uses less digits than its factorization.

73745141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51210.

The product of its digits is 11760, while the sum is 32.

The square root of 73745141 is about 8587.4991120815. The cubic root of 73745141 is about 419.3511163079.

Adding to 73745141 its reverse (14154737), we get a palindrome (87899878).

The spelling of 73745141 in words is "seventy-three million, seven hundred forty-five thousand, one hundred forty-one".

Divisors: 1 1483 49727 73745141