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145143516 = 22373494951
BaseRepresentation
bin10001010011010…
…11011011011100
3101010010001110210
420221223123130
5244124043031
622222532420
73411461640
oct1051533334
9333101423
10145143516
1174a25521
1240737110
13240bb54b
14153c2c20
15cb20746
hex8a6b6dc

145143516 has 48 divisors (see below), whose sum is σ = 388236800. Its totient is φ = 41342400.

The previous prime is 145143469. The next prime is 145143571. The reversal of 145143516 is 615341541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26841 + ... + 31791.

Almost surely, 2145143516 is an apocalyptic number.

It is an amenable number.

145143516 is an abundant number, since it is smaller than the sum of its proper divisors (243093284).

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

145143516 is a wasteful number, since it uses less digits than its factorization.

145143516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314 (or 5312 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 145143516 is about 12047.5522825178. The cubic root of 145143516 is about 525.5320574335.

The spelling of 145143516 in words is "one hundred forty-five million, one hundred forty-three thousand, five hundred sixteen".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 349 698 1047 1396 2094 2443 4188 4886 4951 7329 9772 9902 14658 14853 19804 29316 29706 34657 59412 69314 103971 138628 207942 415884 1727899 3455798 5183697 6911596 10367394 12095293 20734788 24190586 36285879 48381172 72571758 145143516