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2103157 = 71032917
BaseRepresentation
bin1000000001011101110101
310221211222201
420001131311
51014300112
6113024501
723606440
oct10013565
93854881
102103157
111207151
12855131
13588394
143ca657
152b8257
hex201775

2103157 has 8 divisors (see below), whose sum is σ = 2427776. Its totient is φ = 1784592.

The previous prime is 2103151. The next prime is 2103163. The reversal of 2103157 is 7513012.

It is an interprime number because it is at equal distance from previous prime (2103151) and next prime (2103163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2103157 - 23 = 2103149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738 + ... + 2179.

It is an arithmetic number, because the mean of its divisors is an integer number (303472).

22103157 is an apocalyptic number.

It is an amenable number.

2103157 is a deficient number, since it is larger than the sum of its proper divisors (324619).

2103157 is a wasteful number, since it uses less digits than its factorization.

2103157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 2103157 is about 1450.2265340284. The cubic root of 2103157 is about 128.1220556135.

Adding to 2103157 its reverse (7513012), we get a palindrome (9616169).

The spelling of 2103157 in words is "two million, one hundred three thousand, one hundred fifty-seven".

Divisors: 1 7 103 721 2917 20419 300451 2103157