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42987155470248 = 23311223643597369
BaseRepresentation
bin10011100011000101110100…
…01000011011011110101000
312122012112100202221120101110
421301202322020123132220
521113300143300021443
6231232005424550320
712024501533435163
oct1161427210333650
9178175322846343
1042987155470248
1112773828654500
1249a32474823a0
131aca895cbb6b2
14a88837556ada
154e82db9be233
hex2718ba21b7a8

42987155470248 has 96 divisors (see below), whose sum is σ = 123261768302400. Its totient is φ = 12460045044480.

The previous prime is 42987155470219. The next prime is 42987155470253. The reversal of 42987155470248 is 84207455178924.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321731893 + ... + 321865476.

It is an arithmetic number, because the mean of its divisors is an integer number (1283976753150).

Almost surely, 242987155470248 is an apocalyptic number.

It is an amenable number.

42987155470248 is an abundant number, since it is smaller than the sum of its proper divisors (80274612832152).

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

42987155470248 is a wasteful number, since it uses less digits than its factorization.

42987155470248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643597423 (or 643597408 counting only the distinct ones).

The product of its (nonzero) digits is 180633600, while the sum is 66.

The spelling of 42987155470248 in words is "forty-two trillion, nine hundred eighty-seven billion, one hundred fifty-five million, four hundred seventy thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 11 12 22 23 24 33 44 46 66 69 88 92 121 132 138 184 242 253 264 276 363 484 506 552 726 759 968 1012 1452 1518 2024 2783 2904 3036 5566 6072 8349 11132 16698 22264 33396 66792 643597369 1287194738 1930792107 2574389476 3861584214 5148778952 7079571059 7723168428 14159142118 14802739487 15446336856 21238713177 28318284236 29605478974 42477426354 44408218461 56636568472 59210957948 77875281649 84954852708 88816436922 118421915896 155750563298 162830134357 169909705416 177632873844 233625844947 311501126596 325660268714 355265747688 467251689894 488490403071 623002253192 651320537428 934503379788 976980806142 1302641074856 1791131477927 1869006759576 1953961612284 3582262955854 3907923224568 5373394433781 7164525911708 10746788867562 14329051823416 21493577735124 42987155470248