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20762106455858 = 2103727138634009
BaseRepresentation
bin1001011100010000011011…
…11110101110011100110010
32201111211121220012202100112
410232020031332232130302
510210131243223041413
6112053551404221322
74242004232015555
oct456101576563462
981454556182315
1020762106455858
1166851839111a9
1223b3a0353a842
13b77b20719331
1451ac69aa269c
1526010b5812a8
hex12e20dfae732

20762106455858 has 16 divisors (see below), whose sum is σ = 31488774495360. Its totient is φ = 10266125560416.

The previous prime is 20762106455809. The next prime is 20762106455861. The reversal of 20762106455858 is 85855460126702.

It is a junction number, because it is equal to n+sod(n) for n = 20762106455797 and 20762106455806.

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, 69167243 + ... + 69466766.

It is an arithmetic number, because the mean of its divisors is an integer number (1968048405960).

Almost surely, 220762106455858 is an apocalyptic number.

20762106455858 is a deficient number, since it is larger than the sum of its proper divisors (10726668039502).

20762106455858 is a wasteful number, since it uses less digits than its factorization.

20762106455858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138634841.

The product of its (nonzero) digits is 32256000, while the sum is 59.

The spelling of 20762106455858 in words is "twenty trillion, seven hundred sixty-two billion, one hundred six million, four hundred fifty-five thousand, eight hundred fifty-eight".

Divisors: 1 2 103 206 727 1454 74881 149762 138634009 277268018 14279302927 28558605854 100786924543 201573849086 10381053227929 20762106455858