Search a number
-
+
93814381 = 1719290447
BaseRepresentation
bin1011001011101…
…11111001101101
320112112021010201
411211313321231
5143004030011
613150433501
72216260213
oct545677155
9215467121
1093814381
1148a57151
1227502891
131658918b
14c660cb3
158381cc1
hex5977e6d

93814381 has 8 divisors (see below), whose sum is σ = 104561280. Its totient is φ = 83648448.

The previous prime is 93814367. The next prime is 93814387. The reversal of 93814381 is 18341839.

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 93814381 - 211 = 93812333 is a prime.

It is a super-2 number, since 2×938143812 = 17602276164826322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 93814381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93814387) 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, 144901 + ... + 145546.

It is an arithmetic number, because the mean of its divisors is an integer number (13070160).

Almost surely, 293814381 is an apocalyptic number.

It is an amenable number.

93814381 is a deficient number, since it is larger than the sum of its proper divisors (10746899).

93814381 is a wasteful number, since it uses less digits than its factorization.

93814381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290483.

The product of its digits is 20736, while the sum is 37.

The square root of 93814381 is about 9685.7824154789. The cubic root of 93814381 is about 454.3841137826.

The spelling of 93814381 in words is "ninety-three million, eight hundred fourteen thousand, three hundred eighty-one".

Divisors: 1 17 19 323 290447 4937599 5518493 93814381