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180681514052 = 221317204390853
BaseRepresentation
bin1010100001000101110…
…1010001110001000100
3122021101000010220202212
42220101131101301010
510430013431422202
6215000503522552
716024312346354
oct2502135216104
9567330126685
10180681514052
116a699005836
122b025a59458
1314065bb06c0
148a60520b64
154a77478652
hex2a11751c44

180681514052 has 24 divisors (see below), whose sum is σ = 360545466456. Its totient is φ = 78486087168.

The previous prime is 180681514043. The next prime is 180681514061. The reversal of 180681514052 is 250415186081.

It is an interprime number because it is at equal distance from previous prime (180681514043) and next prime (180681514061).

It can be written as a sum of positive squares in 4 ways, for example, as 75216353536 + 105465160516 = 274256^2 + 324754^2 .

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, 102194543 + ... + 102196310.

It is an arithmetic number, because the mean of its divisors is an integer number (15022727769).

Almost surely, 2180681514052 is an apocalyptic number.

It is an amenable number.

180681514052 is a deficient number, since it is larger than the sum of its proper divisors (179863952404).

180681514052 is a wasteful number, since it uses less digits than its factorization.

180681514052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204390887 (or 204390885 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 41.

The spelling of 180681514052 in words is "one hundred eighty billion, six hundred eighty-one million, five hundred fourteen thousand, fifty-two".

Divisors: 1 2 4 13 17 26 34 52 68 221 442 884 204390853 408781706 817563412 2657081089 3474644501 5314162178 6949289002 10628324356 13898578004 45170378513 90340757026 180681514052