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143460020 = 22511259281
BaseRepresentation
bin10001000110100…
…00011010110100
3100222221112011002
420203100122310
5243211210040
622122502432
73361250534
oct1043203264
9328845132
10143460020
1173a85700
1240064a18
132394c1b2
14150a54c4
15c8dba15
hex88d06b4

143460020 has 36 divisors (see below), whose sum is σ = 331149252. Its totient is φ = 52166400.

The previous prime is 143460019. The next prime is 143460041. The reversal of 143460020 is 20064341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 93276964 + 50183056 = 9658^2 + 7084^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 143459974 and 143460001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27221 + ... + 32060.

Almost surely, 2143460020 is an apocalyptic number.

143460020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143460020 is an abundant number, since it is smaller than the sum of its proper divisors (187689232).

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

143460020 is a wasteful number, since it uses less digits than its factorization.

143460020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59312 (or 59299 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 143460020 is about 11977.4797015065. The cubic root of 143460020 is about 523.4922971280.

The spelling of 143460020 in words is "one hundred forty-three million, four hundred sixty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 220 242 484 605 1210 2420 59281 118562 237124 296405 592810 652091 1185620 1304182 2608364 3260455 6520910 7173001 13041820 14346002 28692004 35865005 71730010 143460020