Search a number
-
+
161224954 = 21171103217
BaseRepresentation
bin10011001110000…
…01100011111010
3102020101002001121
421213001203322
5312233144304
623555335454
73665250412
oct1147014372
9366332047
10161224954
1183009770
1245bb158a
132752c1a7
14175ab642
15e24a554
hex99c18fa

161224954 has 16 divisors (see below), whose sum is σ = 267541056. Its totient is φ = 72251200.

The previous prime is 161224951. The next prime is 161225039. The reversal of 161224954 is 459422161.

161224954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (161224951) 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, 50047 + ... + 53170.

It is an arithmetic number, because the mean of its divisors is an integer number (16721316).

Almost surely, 2161224954 is an apocalyptic number.

161224954 is a deficient number, since it is larger than the sum of its proper divisors (106316102).

161224954 is a wasteful number, since it uses less digits than its factorization.

161224954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103301.

The product of its digits is 17280, while the sum is 34.

The square root of 161224954 is about 12697.4388756158. The cubic root of 161224954 is about 544.2654346411.

The spelling of 161224954 in words is "one hundred sixty-one million, two hundred twenty-four thousand, nine hundred fifty-four".

Divisors: 1 2 11 22 71 142 781 1562 103217 206434 1135387 2270774 7328407 14656814 80612477 161224954