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73023142 = 2181120161
BaseRepresentation
bin1000101101000…
…11111010100110
312002101221220211
410112203322212
5122143220032
611125050034
71544454313
oct426437246
9162357824
1073023142
1138246405
122055691a
131218987a
1499abd0a
156626747
hex45a3ea6

73023142 has 8 divisors (see below), whose sum is σ = 109600632. Its totient is φ = 36489600.

The previous prime is 73023107. The next prime is 73023149. The reversal of 73023142 is 24132037.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73023149) 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, 6459 + ... + 13702.

It is an arithmetic number, because the mean of its divisors is an integer number (13700079).

Almost surely, 273023142 is an apocalyptic number.

73023142 is a deficient number, since it is larger than the sum of its proper divisors (36577490).

73023142 is a wasteful number, since it uses less digits than its factorization.

73023142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21974.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 73023142 is about 8545.3579211172. The cubic root of 73023142 is about 417.9780785647.

Adding to 73023142 its reverse (24132037), we get a palindrome (97155179).

The spelling of 73023142 in words is "seventy-three million, twenty-three thousand, one hundred forty-two".

Divisors: 1 2 1811 3622 20161 40322 36511571 73023142