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145216119805 = 5120432411627
BaseRepresentation
bin1000011100111110001…
…1100010001111111101
3111212211100202012221121
42013033203202033331
54334400311313210
6150413353230541
713330406436451
oct2071743421775
9455740665847
10145216119805
1156649794159
1224188702451
1310903430113
1470582aa661
153b9db186da
hex21cf8e23fd

145216119805 has 8 divisors (see below), whose sum is σ = 174273885792. Its totient is φ = 116163201168.

The previous prime is 145216119779. The next prime is 145216119827. The reversal of 145216119805 is 508911612541.

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 145216119805 - 27 = 145216119677 is a prime.

It is a super-2 number, since 2×1452161198052 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

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, 1145599 + ... + 1266028.

It is an arithmetic number, because the mean of its divisors is an integer number (21784235724).

Almost surely, 2145216119805 is an apocalyptic number.

It is an amenable number.

145216119805 is a deficient number, since it is larger than the sum of its proper divisors (29057765987).

145216119805 is a wasteful number, since it uses less digits than its factorization.

145216119805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423675.

The product of its (nonzero) digits is 86400, while the sum is 43.

The spelling of 145216119805 in words is "one hundred forty-five billion, two hundred sixteen million, one hundred nineteen thousand, eight hundred five".

Divisors: 1 5 12043 60215 2411627 12058135 29043223961 145216119805