Search a number
-
+
618950142 = 23234386119
BaseRepresentation
bin100100111001000…
…110110111111110
31121010122220222100
4210321012313332
52231422401032
6141230125530
721223663236
oct4471066776
91533586870
10618950142
11298421448
121533508a6
139b3021b5
145c2bacc6
153951297c
hex24e46dfe

618950142 has 12 divisors (see below), whose sum is σ = 1341058680. Its totient is φ = 206316708.

The previous prime is 618950141. The next prime is 618950153. The reversal of 618950142 is 241059816.

It is a junction number, because it is equal to n+sod(n) for n = 618950097 and 618950106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618950141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17193042 + ... + 17193077.

It is an arithmetic number, because the mean of its divisors is an integer number (111754890).

Almost surely, 2618950142 is an apocalyptic number.

618950142 is an abundant number, since it is smaller than the sum of its proper divisors (722108538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

618950142 is a wasteful number, since it uses less digits than its factorization.

618950142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34386127 (or 34386124 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 618950142 is about 24878.7086079644. The cubic root of 618950142 is about 852.2203275320.

The spelling of 618950142 in words is "six hundred eighteen million, nine hundred fifty thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 34386119 68772238 103158357 206316714 309475071 618950142