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61028636348 = 22193721702929
BaseRepresentation
bin111000110101100101…
…110001011010111100
312211112012010221112202
4320311211301122330
51444441312330343
644011451251032
74260226564331
oct706545613274
9184465127482
1061028636348
112397808a849
12b9b2449a78
1359a78b2754
142d4d336988
1518c2bdddb8
hexe359716bc

61028636348 has 24 divisors (see below), whose sum is σ = 115459587600. Its totient is φ = 28126994688.

The previous prime is 61028636269. The next prime is 61028636371. The reversal of 61028636348 is 84363682016.

It is a congruent number.

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, 10848653 + ... + 10854276.

It is an arithmetic number, because the mean of its divisors is an integer number (4810816150).

Almost surely, 261028636348 is an apocalyptic number.

It is an amenable number.

61028636348 is a deficient number, since it is larger than the sum of its proper divisors (54430951252).

61028636348 is a wasteful number, since it uses less digits than its factorization.

61028636348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21702989 (or 21702987 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 61028636348 in words is "sixty-one billion, twenty-eight million, six hundred thirty-six thousand, three hundred forty-eight".

Divisors: 1 2 4 19 37 38 74 76 148 703 1406 2812 21702929 43405858 86811716 412355651 803008373 824711302 1606016746 1649422604 3212033492 15257159087 30514318174 61028636348