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42187922428674 = 231116692693142217
BaseRepresentation
bin10011001011110101001000…
…01000010101001100000010
312112101010101211222100120110
421211322210020111030002
521012201331120204144
6225420510343052150
711612656021612431
oct1145724410251402
9175333354870513
1042187922428674
1112495885412a50
124894375a41056
131a703c4bc6699
14a5bc98dd9118
154d2610bc90b9
hex265ea4215302

42187922428674 has 64 divisors (see below), whose sum is σ = 92136375020160. Its totient is φ = 12771724945920.

The previous prime is 42187922428633. The next prime is 42187922428711. The reversal of 42187922428674 is 47682422978124.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296573614 + ... + 296715830.

It is an arithmetic number, because the mean of its divisors is an integer number (1439630859690).

Almost surely, 242187922428674 is an apocalyptic number.

42187922428674 is an abundant number, since it is smaller than the sum of its proper divisors (49948452591486).

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

42187922428674 is a wasteful number, since it uses less digits than its factorization.

42187922428674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146595.

The product of its digits is 173408256, while the sum is 66.

It can be divided in two parts, 4218792 and 2428674, that added together give a palindrome (6647466).

The spelling of 42187922428674 in words is "forty-two trillion, one hundred eighty-seven billion, nine hundred twenty-two million, four hundred twenty-eight thousand, six hundred seventy-four".

Divisors: 1 2 3 6 11 22 33 66 1669 2693 3338 5007 5386 8079 10014 16158 18359 29623 36718 55077 59246 88869 110154 142217 177738 284434 426651 853302 1564387 3128774 4494617 4693161 8989234 9386322 13483851 26967702 49440787 98881574 148322361 237360173 296644722 382990381 474720346 712080519 765980762 1148971143 1424161038 2297942286 2610961903 4212894191 5221923806 7832885709 8425788382 12638682573 15665771418 25277365146 639210945889 1278421891778 1917632837667 3835265675334 7031320404779 14062640809558 21093961214337 42187922428674