Search a number
-
+
143970552 = 23321117337
BaseRepresentation
bin10001001010011…
…01000011111000
3101000220110110200
420211031003320
5243324024202
622141442200
73365505135
oct1045150370
9330813420
10143970552
11742a4230
1240270360
1323a9a69b
141519958c
15c98ce1c
hex894d0f8

143970552 has 192 divisors, whose sum is σ = 464162400. Its totient is φ = 39951360.

The previous prime is 143970539. The next prime is 143970559. The reversal of 143970552 is 255079341.

143970552 is a `hidden beast` number, since 1 + 4 + 39 + 70 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143970559) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3891078 + ... + 3891114.

Almost surely, 2143970552 is an apocalyptic number.

143970552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143970552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232081200).

143970552 is an abundant number, since it is smaller than the sum of its proper divisors (320191848).

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

143970552 is a wasteful number, since it uses less digits than its factorization.

143970552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 143970552 is about 11998.7729372632. The cubic root of 143970552 is about 524.1125469649.

The spelling of 143970552 in words is "one hundred forty-three million, nine hundred seventy thousand, five hundred fifty-two".