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143072419 = 7109187513
BaseRepresentation
bin10001000011100…
…01110010100011
3100222012211110111
420201301302203
5243111304134
622110312151
73355044520
oct1041616243
9328184414
10143072419
1173840476
123bab8657
1323844949
1415004147
15c861c64
hex8871ca3

143072419 has 8 divisors (see below), whose sum is σ = 165012320. Its totient is φ = 121507776.

The previous prime is 143072401. The next prime is 143072437. The reversal of 143072419 is 914270341.

It is an interprime number because it is at equal distance from previous prime (143072401) and next prime (143072437).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143072419 - 27 = 143072291 is a prime.

It is a super-2 number, since 2×1430724192 = 40939434157023122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143072519) 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, 92994 + ... + 94519.

It is an arithmetic number, because the mean of its divisors is an integer number (20626540).

Almost surely, 2143072419 is an apocalyptic number.

143072419 is a deficient number, since it is larger than the sum of its proper divisors (21939901).

143072419 is a wasteful number, since it uses less digits than its factorization.

143072419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187629.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 143072419 is about 11961.2883503409. The cubic root of 143072419 is about 523.0204138576.

The spelling of 143072419 in words is "one hundred forty-three million, seventy-two thousand, four hundred nineteen".

Divisors: 1 7 109 763 187513 1312591 20438917 143072419