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30708006870 = 2358271237727
BaseRepresentation
bin11100100110010101…
…101111111111010110
32221021002112101012210
4130212111233333112
51000342222204440
622035043054250
72134654515552
oct344625577726
987232471183
1030708006870
1112028962082
125b50071386
132b84c78a88
1416b44a8862
15bead7da80
hex72656ffd6

30708006870 has 32 divisors (see below), whose sum is σ = 73788392448. Its totient is φ = 8178893408.

The previous prime is 30708006863. The next prime is 30708006871. The reversal of 30708006870 is 7860080703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30708006871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594054 + ... + 643673.

It is an arithmetic number, because the mean of its divisors is an integer number (2305887264).

Almost surely, 230708006870 is an apocalyptic number.

30708006870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30708006870 is an abundant number, since it is smaller than the sum of its proper divisors (43080385578).

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

30708006870 is a wasteful number, since it uses less digits than its factorization.

30708006870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238564.

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 30708006870 in words is "thirty billion, seven hundred eight million, six thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 827 1654 2481 4135 4962 8270 12405 24810 1237727 2475454 3713181 6188635 7426362 12377270 18565905 37131810 1023600229 2047200458 3070800687 5118001145 6141601374 10236002290 15354003435 30708006870