Search a number
-
+
145873774 = 2236834643
BaseRepresentation
bin10001011000111…
…01101101101110
3101011111011012101
420230131231232
5244320430044
622250325314
73420622654
oct1054355556
9334434171
10145873774
1175384142
1240a2983a
13242b5a57
1415532dd4
15cc16cd4
hex8b1db6e

145873774 has 16 divisors (see below), whose sum is σ = 228707712. Its totient is φ = 69648568.

The previous prime is 145873747. The next prime is 145873823. The reversal of 145873774 is 477378541.

145873774 = T9860 + T9861 + T9862.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29097 + ... + 33739.

It is an arithmetic number, because the mean of its divisors is an integer number (14294232).

Almost surely, 2145873774 is an apocalyptic number.

145873774 is the 9862-nd centered triangular number.

145873774 is a deficient number, since it is larger than the sum of its proper divisors (82833938).

145873774 is a wasteful number, since it uses less digits than its factorization.

145873774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351.

The product of its digits is 658560, while the sum is 46.

The square root of 145873774 is about 12077.8215751020. The cubic root of 145873774 is about 526.4119501257.

The spelling of 145873774 in words is "one hundred forty-five million, eight hundred seventy-three thousand, seven hundred seventy-four".

Divisors: 1 2 23 46 683 1366 4643 9286 15709 31418 106789 213578 3171169 6342338 72936887 145873774