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143244992 = 26111711969
BaseRepresentation
bin10001000100110…
…11111011000000
3100222112121012002
420202123323000
5243132314432
622114123132
73356363612
oct1042337300
9328477162
10143244992
11739490a0
123bb804a8
13238a5367
141504adb2
15c897e62
hex889bec0

143244992 has 56 divisors (see below), whose sum is σ = 328361040. Its totient is φ = 61276160.

The previous prime is 143244973. The next prime is 143245001. The reversal of 143244992 is 299442341.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 5984 + ... + 17952.

It is an arithmetic number, because the mean of its divisors is an integer number (5863590).

Almost surely, 2143244992 is an apocalyptic number.

It is a pronic number, being equal to 11968×11969.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143244992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164180520).

143244992 is an abundant number, since it is smaller than the sum of its proper divisors (185116048).

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

143244992 is a wasteful number, since it uses less digits than its factorization.

143244992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12009 (or 11999 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 143244992 is about 11968.4999895559. The cubic root of 143244992 is about 523.2306172795.

The spelling of 143244992 in words is "one hundred forty-three million, two hundred forty-four thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 11 16 17 22 32 34 44 64 68 88 136 176 187 272 352 374 544 704 748 1088 1496 2992 5984 11968 11969 23938 47876 95752 131659 191504 203473 263318 383008 406946 526636 766016 813892 1053272 1627784 2106544 2238203 3255568 4213088 4476406 6511136 8426176 8952812 13022272 17905624 35811248 71622496 143244992