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87487000442 = 2616742125423
BaseRepresentation
bin101000101111010100…
…0011010111101111010
322100211010020002210122
41101132220122331322
52413133133003232
6104105130013242
76215003143142
oct1213650327572
9270733202718
1087487000442
1134115149356
1214b57277222
1383332c0baa
14433d265922
152420934312
hex145ea1af7a

87487000442 has 32 divisors (see below), whose sum is σ = 135699481344. Its totient is φ = 42281870400.

The previous prime is 87487000441. The next prime is 87487000457. The reversal of 87487000442 is 24400078478.

It is a junction number, because it is equal to n+sod(n) for n = 87487000393 and 87487000402.

It is not an unprimeable number, because it can be changed into a prime (87487000441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3428543 + ... + 3453965.

It is an arithmetic number, because the mean of its divisors is an integer number (4240608792).

Almost surely, 287487000442 is an apocalyptic number.

87487000442 is a deficient number, since it is larger than the sum of its proper divisors (48212480902).

87487000442 is a wasteful number, since it uses less digits than its factorization.

87487000442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25974.

The product of its (nonzero) digits is 401408, while the sum is 44.

The spelling of 87487000442 in words is "eighty-seven billion, four hundred eighty-seven million, four hundred forty-two", and thus it is an aban number.

Divisors: 1 2 61 67 122 134 421 842 4087 8174 25423 25681 28207 50846 51362 56414 1550803 1703341 1720627 3101606 3406682 3441254 10703083 21406166 103903801 207807602 652888063 717106561 1305776126 1434213122 43743500221 87487000442